Olin Lathrop wrote: > William Chops Westfield wrote: > >> I wonder if it would be practical/profitable for one of the bigger >> "for-profit" vendors to offer a limited "starter kit" that would sell >> for less than $10 and include the most commmon parts. >> > > No. Think about it. The kind of people that would buy such a kit are > exactly the ones that would complain "I could have bought these parts for > $5.03 myself, your $10 price is a ripoff". > > Then there's never a good answer what to include. Remember the PIClist PBK > discussion of a few years ago? It started out as a simple and cheap > programmer, but then all those people who wouldn't even buy one kept adding > more bells and whistles, then it became too expensive. No matter what you > include, there will be far more people complaining that you didn't include a > LCD or a ZIF socket or a opamp or a few more LEDs or the power supply is too > inflexible or if it were only this other PIC, than people willing to buy it > as is. And if you do add some of these bells and whistles, it will be too > expensive and many more will complain that they don't want to pay for a ZIF > socket, a LCD, opamp, a few more LEDs, a better power supply, or the bigger > PIC. In other words, you're always selling into a niche. > > Then there is the financial aspect. The kit would have to cost less than > the total of the same parts bought at the same place. Let's say the profit > margin on small $1 items is 50%, so you might make 40% on the kit max. > That's $4 profit on the kit price minus your cost of goods. Even if you get > these kits pre-packaged in final shipping container in volume, the packaging > and labor to box it up and the eventual labor to take the order, address the > box, and get it shipped is going to be at least $1. We'll assume the > customer is charged the true shipping costs, so I won't include that. So > you're down to $3 you make every one you ship, and I'm being quite generous. > > Now you have to include the cost to develop the product, get the first lot > produced, add the information to a catalog or web site, etc. Selecting the > right parts, creating the bill of materials, and writing up the technical > documentation requires a engineer. This engineer also has to interface with > production later and deal with the inevitable screwups in the production > process. Then there is a bunch of project management and logistics issues > like getting the parts in, dealing with the lead times, new part numbers due > to RoHS conversions, vendor ships wrong parts, production says they're > already overbooked, etc, etc, etc. I think I'm being very generous saying > that all the design, hassle, documentation, fire fighting, and everything > will only take 1 week labor. At a bigger organization, as was your premise, > you can split this between skilled engineers and lower paid logistics people > as reasonable. Let's say the average pay for that week is $40/hour > salaried. The company gives 2 weeks/year holiday and the employees get > another 2 weeks/year vacation, for a total of 48 work weeks/year. The > $40/hour the employee "makes" from his point of view really costs you $43.33 > right there or $83.2K/year just in direct salary. Now add $1000/year for > medical benefits, 20% managment and facilities overhead (I'm being very > generous), 15% in increase in your corporate insurance, your part of the > FICA, state unemployment insurance tax, federal unemployment insurance tax, > etc, and the real cost for that employee is $112.32K/year, divided by 48 > working weeks comes out to $2340 to design this product and manage it thru > to introduction. In reality most companies would never see a cost that low, > but let's go with that anyway. At $3 profit per unit, that means you have > to sell 780 units just to break even. > > Now we add the cost of the first production run. You probably need to > produce in lots of 1000 to get the costs we discussed earlier, but let's say > you produce just the 780 units on the first run you need to break even. > That's another $5460 up front cost for a total of $7800. I'll even ignore > the warehouse cost for now since that's hard to quantify (but that doesn't > make it any less real). > And in fact, just the actual parts cost won't do it. You need about 10% overage to cover losses in assembly errors or simple failures. The cost of shipping adds another 10%. > So for $7800 up front you break even after selling 780 of these kits. I > don't see even a established big place, like Jameco for example, being able > to move 780 of these things before they go obsolete. And there's no point > in launching a project just to break even. For $9340 you get 1000 kits > which you eventually make $660 on. Even if your wildest dreams came true > and you sold all $1000 in two years, that's $660 return for a $9340 > investment after two years. So after all that you get to make 3.5% > effective annual yield on your money. The bank down the street gives higher > yield with much less risk. > My casino in Laughlin, NV offers better than that, and throws in a free room as well. --Bob > > ******************************************************************** > Embed Inc, Littleton Massachusetts, http://www.embedinc.com/products > (978) 742-9014. Gold level PIC consultants since 2000. > -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist