Thankfully I have all the GameCube games I wanted. I might still pick up Ikaruga, but I've been "considering it" for almost 20 years or whatever it's been since I lost my copy, so it's not a priority. If someone responds to me here like "oh yeah that one got expensive" then I'll probably just never buy it.
Me, I'm hoping ps2 horror games start to get a bit lower, I'm still missing Kuon (pm me if you have it for sale!).