Dreamcast taught me the difference between 30fps and 60fps. I couldn't work out at first why some games seemed so silky smooth, while others if you followed objects had a "double vision" effect. Turned out the double vision effect was caused by the gap in frames.
Always able to tell any game at 30fps or 60fps since. Criminally Xbox 360 and PS3's number of 60fps games were far lower than the gen before.
30fps games also play nowhere near as well as 60fps games. I don't think it's a coincidence that Call of Duty is the FPS that struck gold with gamers and it's also the only mainstream FPS to use 60fps (on consoles). Even if you can't see the difference, you can certainly feel it.
RIP Dad 25/11/51 - 13/12/13. You will be missed but never forgotten.
