and asks for a few bucks in return. In particular, what's so terrible about
one that would SAVE you 80-90% off a repair bill.?

Well, the general approach in the Internet repair world is to charge for parts,
not information.

Moreover, the tendency to try and keep information restrained so its price
remains high can be percieved as selfish in its own way. It's like damming a
river at the edge of your property, so you can sell the water
--
Marada Shra'drakaii