Okay, Pokemon didn't disappear as so many fads do. We are going on ten years now and kids are still speaking in tongues about this show/card game/video game series. Nintendo has found the golden egg. A game series that hooks all the 8-10 year old kids for a few years then hooks their younger siblings.
Diamond is just the lastest in Pokemon's plot to take over your kid's mind. It is designed for use only on the newer DS platform and is one of two nearly identical games the other called Pearl. Here's the kicker. Your kid will want both! They are almost the same but not quite. They have a few different Pokemon mosters to collect and they will be inconsolable unless they can 'catch 'em all'.
Heres the idea. You explore a region of the Pokemon universe. You catch or fight every Pokemon you see. You battle rivals and other DS owners and you find every monster. It's curiously addictive to the young minds of my boys.
It has nice enough graphics, very cartoony look to it and a surprisingly complex level of gameplay.
It has held my kids attention far longer than any other DS game he has ever owned and he is king of the castle in his little pokemaniac gang for being the first to own it.
If your kid is into Pokemon, trust me, this is what he or she wants.