Yeah, the most retro gaming stuff that I've ever found at garage/yard sales has been basically a NES light gun at one sale, a NES controller at a different sale, 2-4 random cheapie NES games at a different sale, and a power cord-less Retro Twin (clone system that plays NES & SNES games) with Aerobiz and 1 SNES controller at another different sale. I have looked at hundreds and hundreds of these sales and this is all that I have found in the last 4 years.

They just aren't out 'in the wild' much anymore. (Oh, I just remembered that I've seen a very few random common Atari games out there occasionally too, but since I don't have, care for, or keep up with Atari stuff, I usually just pass over them.) Oddly enough, when my wife was out at a subdivision garage sale yesterday, she came across a place that had a large box of NES games for $0.50 each, and the owner said that she had a lot more (1000+ assorted video games) in the basement, so I may try to connect with her sometime this week and see what she has.