It's become financially impossible for me to keep up with new soundtrack releases (new releases now have OOP prices), so I've adapted. I'm in the process of reorganizing my entire collection in a way that will put more focus on what I already have and reduce the desire to acquire more. The reorganization has the added benefit of making my music more listener friendly, without fiddling with replay gain, due to the fact I have chosen a chronological organization. It's truly pleasant. As an example, I loaded some songs from many different albums in the "1989" folder into Winamp and the volume level was consistent. I no longer have to "think" and make sure I am loading songs close to each other in age.
I'm not really concerned about video game music made after 2000 and I've deleted every "new" album from my wishlist on vgmdb. This is more appropriate when my gaming habits are taken into consideration, since my greatest gaming years occurred before 2000. So it's no longer necessary for me to continue my habit of trying to keep up with everything. I already have what's important (to me).
I haven't yet deleted new music from my collection, since there are some gems buried in recent years, especially Cave and doujin releases. It's going to be hard to decide how to organize post 2000 albums.