I have an XO-5 that I love, I got it for $100 on the sac CL. I also saw an XO-3 go for $50 the day after I purchased my XO-5, luckily it was too small and 2 hours away.
Anyways, heres my XO-5.
It's not top of the line, but I love the ride.
Just be patient and maybe expand your search to a few other cities. Good luck!
-edit-
I fail at adding pictures?