My thrift store finds have been solid lately, and actually have been outperforming my yard sale finds in the last month or so.
These were found here and there in May/June at various thrifts in my area. I won't give you a price per game breakdown, but every game was between $4 and $6 when purchased (the SNES games are hard to make out, but are Yoshi's Island, Brain Lord, and Adventures of Batman and Robin). I even got the DS for 4 dollars at a Goodwill, after some hispanic guy walking around with it couldn't get it to turn on and didn't want to chance it. I snagged it when he picked it up, charged it when I got home, and it worked like a charm. I've also found numerous SNES/GBA SP/n64 power and tv cords recently, each for $2 or $3 or so.
I got really lucky on timing with this lot about a month ago. I found it all at once, right around 2pm at a very high traffic thrift store. Resellers from far and wide hit this store every weekday afternoon, which is when this store puts out new stuff. I walked in and made a beeline for the video game area near the front desk, and noticed a rubbermaid tub full of cds and n64 games behind the counter. I grabbed a hand cart and filled it with every worthwhile n64 game they had. Another reseller guy, who I see now and then at this same store, noticed what I was doing, but he was too late really, and he knew it. I left a few sports games for scraps, but he didn't bother. Thrifting is so dog eat dog at that store, its funny. It sucks to get beat. Every game was 90 cents!
Same thrift store as the previous picture, except this time I walked in Saturday evening (which is generally not the best time to find good stuff). Apparently, they must have decided to put out a bunch of CD-type stuff, because I found all of these games mixed in with the CDs. Every game was complete and mint or really close. Again, I left the 2k sports games, and only took the winners. Dreamcast games were 90 cents, PS games were $1.90. I had a very small Dreamcast collection prior to this purchase, and I just tripled it.
Keep your thriftin' hand strong!