JP, I believe the Phantasy Star games were remade with cel shaded graphics and all for the Playstation 2, but it's Japan only. Surprise surprise.
Fox- I didn't think Planescape was that rare either... until I started digging around. Either the game is rare, or sellers are just extortionists jacking up prices because it's a cult classic commodity. According to wiki, it sold 400,000 copies, so it's not like Panzer Dragoon Saga which had a VERY limited run.
I'm not sure if I mentioned this in any prior posts, but rereleases of some classic graphic adventures would be cool; namely LucasArts stuff like Maniac Mansion, Day of the Tentacle, early Sam & Max, Grim Fandango and Sierra stuff like the Gabriel Knight games. I know Space Quest collection was released not too long ago and it's in game shops.
Other than that & Planescape; Panzer Dragoon Saga, Innocent Sin in English (using the Oracle of Maiya translation), Persona 1 without a hackjob translation, Soul Hackers in English, Final Fantasy 7 looking like that PS3 tech demo from a few years back, and a Director's Cut of Anachronox (that's my wishful thinking rerelease/remake). And though I'm not a Suikoden fan, a rerelease of II is definitely something the fans clamor for.