The English version of Final Fantasy VII also doesn't sell for very much these days. There are copies for less than £10 at the moment on ebay.

I think with FFVII it was the game in the Final Fantasy series that made the series famous. It was the first game to really show what could be achieved on the original Playstation, and every PSX owner I knew bought the game, so a lot of copies are out there. A lot of buyers didn't actually play the game that far into the story, but were just buying it for the technical amazement of the game. It was single handedly responsible for getting a lot more people interested in the RPG genre, and I was surprised by the number of my friends who did actually complete it, or get a long way through the game. Many of them not playing RPGs that much before it, or playing that many games for very long. Equally I knew a lot of people that never got beyond the first disc, and maybe only got as far as the initial Chocobo farming, if that.

I do remember a friend being quite annoyed because every time he got home from university and wanted to play it some more to progress he would find his girlfriend was already playing the game and had progressed further than he had.