I have quite a long list of rides I wish never went defunct. I personally love Arrow coasters so rides like Titan Max, Desperado, Eagle's Fortress, Big Bad Wolf, Shockwave (sfgam), and Great American Scream Machine really stand out to me as something I wish I could've ridden. Shockwave is probably the most notable one of those for me because it used to be at my homepark. There are of course rides that aren't Arrows that I wish were still around but I feel like those have all already been mentioned.