Baseball Advance is a great game!
You have four MLB stadiums - very nicely modeled, and clear differences amongst them in-game.
The gameplay is excellent, by any measure. The fielding is fun and fast-paced, it is easy to control your baserunners, and the pitching and hitting interfaces are logical and work well.
And - the game itself is fast-paced, so you can play a full game in 20 minutes or so....
Sports gaming fans love this game. Even though it is only 3 or 4 years old, it is considered to be a classic.
Here is an Amazon link to the game, but it is $45, which suggests to me that it is now viewed as a collector's item:
http://www.amazon.com/exec/obidos/t...1_9/102-8003387-5674500?v=glance&s=videogames