Actually, dogmush, you make some very good points, ones that I'd not though about.
I'm thinking I should reconsider one of the HF cameras.
" Not to mention you could almost buy 3 for what the Bosch costs."
You're looking at the wrong camera at Home Depot.
The one I was looking at is this one...
http://www.homedepot.com/p/Ryobi-Tek4-Digital-Inspection-Scope-RP4206/202223756It's a Royobi, and is about the same price as the ones at Harbor Freight.
The issue with the Royobi, though, is it's got a 9mm head on it, which means that I'd need a hole pushing half an inch in the wall. The ones at Harbor Freight are just a tiny big smaller...
The really stupid thing is that for a lot of the cameras I'm finding they're not giving the diameter of the damned camera head. That's the stupidest thing I've ever heard of.