I think asking the question "Should I get a DS" is kinda pointless nowadays. You should know that everybody on a forum is going to say yes already. And rarely you'll get the someone who says no but there usually dug into the ground by others fans for saying so. Your the only one who'll know whether you'll like the system, so do your own research.

I think the DS is a system easy to recommend though, the systems library has hit all posts really, every genre is covered, some more than others but there you go. Its hard not to find at least one game you like.