I bought Nintendogs (lab and friends), and it's not the style of game for me. I couldn't get into it. I've basically touched it once, so it's almost brand new.
So I'm looking to trade it with someone for Advance Wars DS.
The only thing I want is Advance Wars Dual Strike.
But I will MAYBE (big maybe here) sell the game for $30 shipped. Which is a good deal, because I've been seeing copies go on eBay for more than $30 before shipping.
That's why I'd rather trade it. And $30 shipped isn't a bad deal, at the store you'll be paying $33 plus gas. On eBay I've seen this game go for around $35.