Hrm, dunno if I would call my collecting mood right now burnout - more frustration.
First, I live in an area where it's almost impossible to come across anything game related in the wild. We have 1 retro "game store", and I use that term very loosely because it's actually just a quarter of a crappy thrift store where the guy charges high-end ebay prices for everything he has. I almost never find anything at the flea markets / yard sales around here. For example, Sat. at yard sales I found:
A CIB Guitar Hero for the DS
2 crappy disk-only 360 games (one of the Transformer movie games and I think another Guitar Hero)
And one place that had about 10 360/Xbox games ranging from disk-only to complete but all were very, very badly scratched. Most all were shooters or sports games, and they were overpriced IMO ($5 for a copy of Star Wars Battlefront II for the Xbox that looked like someone had used the disk to polish their cement driveway).
That's it. I didn't buy any of that crap, of course. And everywhere else when I asked if they had anything they either looked at me like I was asking for drugs or they said something like "oh, I don't even know where our old Nintendo is!"
So I'm kinda sick of going out & looking when I consistently come up empty.
The other half is I have a ton I want to play and not enough time to do so. It doesn't help that my favorite genre is RPG.