Port Programming Kit...Thoughts?

Do you think the C/C++ world/message board/audience/programmers would be interesed in purchasing pre-made kits for programming ports? I keep seeing people on here posting messages about programming the parallel port or serial ports. If I made kits with printed circuit board, the necessary electronic components, a short visual manual, and source code and sold them as cheap as $9.95, do you think anyone out there would be interested? Or is it a waste of my tim e?

I would consider it...the price is pretty cheap...and it would probably beat trying to pull information from 15 different websites and not having any adequate drawings or descriptions of circuits to accompany the text....I tried to work with port programming a while back......and those are the problems i ran into.

xIanx