Yeah, debated doing that with the Xbox360 but didn't get around to it. Found them going for double what they cost. I will definitely see if I can get a few friends to help out too in exchange for a percentage.
Ex. 5 PS3s that cost $500 would go for possibly $1000 (360 doubled MSRP) on eBay. So that would be around $2500 dollars. Due to one per person limit, you need to find some friends to help that still aren't familar or setup on eBay. Then pay them say $100 bucks each, you still come out with $2100.