It looks like a full source code library and development kit that
covers several operating systems.  If well done and nicely portable,
the price is not out-of-line with similar packages implementing some
moderately obscure comm protocol.  Depending on what the associated
licenses allow you to do, of course.  Having "quantity pricing" on
such a product is pretty unusual, though; usually it's a "one license
per site" sort of thing.

It can be easily worth the money, too, if the protocol is proprietary
and complex.  cisco bought a LAT implementation for about that price,
way back when, and it was money well spent...

BillW
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