If you prefer original hardware like me, flash carts make total sense. Sometimes collectors have games in storage, can't get at them. I would disagree on the NES though, there are dozens of games that were not easily available carts that are worthwhile to play. Either too expensive/rare, Fami. only, prototypes, etc. The Atari/CV/INTV systems benefit hugely, lots of unreleased games to play. Same for TG-16, all those Japan-only HuCards. SMS too, you can play the games with 3D or FM sound (with mod) that are too expensive to buy. The only major cart system where the flash doesn't cover completely is of course special-chip centric SNES. I don't feel it's proper to criticize anyone's collecting habits or their decision on game playing and setup. To each his or her own.