Diamond and Pearl- need help with decision?

Yea I think you should try it, it's a fairly fun game. Pokemon isn't only for kids you know, the online battling and trying to train up for the perfect team is pretty hard. If you want to wait a couple of months Pokemon Platinum is going to be released on March 22nd.

If you're trainer on an older version, you'll likely enjoy Pokemon D/P & the touch screen additions. However, you'll likely want to find some friends with the game as well so you can enjoy some of the multiplayer additions (like the Underground).

If you have any of the GBA versions (Ru/Sa/Em Fr/Lg), you can import those pokemon into D/P... but only after you complete the Sinnoh Pokedex (you only have to see all 150, not catch them).

Hope that helps!

you should try it out because all games are different, and you never know there might be pokemons that were not on any of the games that you played.

I have diamond and I liked it better than the old games except for yellow

You should get it, you'll like it. It has a new thing when you complete it you can hunt for shiny pokemon which are rare different colored pokemon.

you shuld try it. its a fun game and a lot of people like to play it. if your still not sure then go to gamefaqs.com for reviews. =)