Actually 4. The fourth is "Battle Arena Toshinden Subaru". It doesn't have the Michael Jackson dude from 3 though and is probobly the worst game ever made. Even if you're the biggest Toshinden fan in the world, Subaru will make you hate life.
It's not really worth it I'd say, unless you've played it before and really liked it. I found it to be not that great personally, and I love quirky odd games.
What's the point of keeping a game just because it's "valuable"? If in 10 years it goes up from $50 to $100, that's hardly much of a gain based on the time spent buying and selling it, inflation, and the returns you would have had on say a CD.
I wouldn't say it looks like everyone else's, mine is completely different anyway.
In terms of rating yours I'd say it's pretty good but a little Nintendo heavy and no PC games. Probobly forgetting something important but here goes:
1. Final Fantasy Tactics (PSX)
2. Fallout (PC)
3. Fallout 2...
I can't wait for the last blade and fatal fury collections to come out for PS2. Fatal Fury Real Bout 2 must be the most underrated fighting game of all time.
I'd grab FF Tactics, Xenogears, FF7, and Persona and ditch the rest.
FF Tactics is the only one with both a really good plot and also good combat though honestly.