Here's what I don't understand about the medical stuff.
Something like this, is the scope
http://www.ebay.com/itm/OLYMPUS-GIF-...#ht_500wt_1144
what else do you need to get the video? Do you need the light source? Some sort of power supply? How do you connect this scope to a TV monitor/computer??
I think that's where the price goes through the roof, you can get the scope itself for under $1k, but what else is needed?