I love the series, you should give it a try! Porkman elegantly invoked a sense of nostalgia in me with his post. Now don't mind me while I go load up Pokemon Red on my phone.
On your phone!? What kind of witchcraft is this? And give me some!
But yeah Pokemon is a pretty good game. Plus, with the newest games, if you ever feel like getting into battling post-game, you can do random wifi matchups now so you don't have to know anybody's friend code. That was a pretty great addition. But, you might want a game like Heart Gold and Soul Silver, which has 8 more gym leaders than the normal if you want a longer story, and more of the original Pokemon since Black and White only have the newest ones until you beat it.
There is plenty to do in the games, it just usually depends on if you feel like doing it haha