PS2 is crazy as well. I only have a handful and all of them have gone up at least 3x, some much more (Silent Hill 2 and 3 are insane). Some PS3 games have shot through the roof too, after being really cheap for years (Puppeteer for example, which isn't even that good, was <$10 basically since it came out in 2013, and now is just under $100).