Yeah, the best I've found was an N64 for $15 at the Salvation Army and Azure Dreams in decent shape, but with a faded cover for $3. That Azure Dreams is a pretty good deal and the N64 was alright since it didn't have a controller.
Of course, you could have "bad luck" for years but then one day you find that someones dropped off a load of extremely rare games that some left after they passed away, or maybe an older couple could clean out their attic and find a gem mint, CIB SNES or NES that they've kept in the attack because it "wasn't the one their kids wanted" and decided to throw it in the yard sale pile. You never know. It's rare, and unlikely, but if you keep it up, eventually you'll find a fair deal.
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~ Trading for a Bit of Everything ~