My kids got the color one 2 or 3 years ago and they still play with them (they are currently 6 and 8).. WE have quite a few games and they like them all. They also each have a Leapster which they still play with and we have a lot of those games as well....This year we are upgrading to Game Boy Advances since they are getting older.
I will have to look at what games they have some are just creative and some are educational ...I "Think" they have among the following: CLifford, Barbie, Rescue Heroes, Faily Oddparents, Hot Wheels, Creative Genius, Dino Draw plus a few more...they play them all.
For leapster I think we have -Spongebob, Nemo (though we can't find it), Junie B Jones, Animal Genius, I Spy, Learn to Draw (or something like that),
Dora, Leapfrog Kindergarten, 1st grade, letter factory and few more again they play them all although they are starting to out grow some of them (for both systems.)
Both systems have held up well to lots of travel .