I started college in 2004, and one of my first bonding moments with others was through DDR machines at another local college that happened to have cabinets set to $0.50 for 4 songs. We'd make trips over to this other school to play for an evening, putting quarters on the edge of the display bezel to hold your spot and everything, and my most distinct memory of that time is the feel of shoe-less, socked feet on arcade machines. I was never anywhere near this good; I learned on PS2 DDRMAX 1/2 games and mid-tier RedOctane pads without rear bars to lean on, and that's just DDR; I hardly played any PIU, and even my most hardcore DDR friends didn't. So this is just a wild unknown thing to me.
I'm almost embarrassed at how nostalgic this stuff makes me feel, lol