Anyone ever look at their old stuff and consider selling it? I went through my GBA and DS games last night, and probably have close to $2000 in stuff. Then I thought, well, if it has gone up this much, maybe it'll go up more! I have no idea when a peak selling window is. I was just checking prices here:
https://www.pricecharting.com/console/nintendo-ds
And I do have a few gems.