pokemon platinum question

Is it worth buying since i've already played diamond. What are the new upgrades or add ons that platinum has and diamond doesnt?

First off the story is diffrent.

Second, more options for Wi-Fi, including uploading videos.

Third, alot of end game features(Battle Gym Leaders frelly and the get stronger for ever match; Battle Frontier,etc.)

Certain Pokemon appear in this game(Articuno, Zapdos,Moltres)

Basically, the just gave Diamond new stuff, nothing major. Dont buy if you just want something that sounds like [to you] Diamond v2.

I never played a third game (Yellow, Crystal, Emerald...ect) because I thought they were basically the same.

But this looks really good, even though I played Diamond and Pearl.

Some dude made a super duper list of all the changes made to the game, allthough miniscule.

IMO just buy it, everyone buys them somewhere down the line.

hmm guess i'll be picking up a copy then

www.serebii.net/platinum/changes/shtml

Go, and be awakened.