I don't feel like typing much, so I'll leave this here.
You have to remember - you are far, far from their target audience. You decide to stop playing Pokemon? That's alright, there are 20 8 year olds ready to replace you and they love the Dream World. It's bright and colorful and not too difficult for them to understand and they get to get their favorite Pokemon and farm just like mommy and Farmville. The Dream World isn't meant to target you and make you happy, it's meant to make the kids happy, the kids that beg their parents to buy DVDs and merchandise and books and cards. I know my mom has spent more on Pokemon-related things from when I was a kid than I've ever spent as a young adult.
I'm personally not the biggest fan of the DW, but I'm of the opinion that just because I don't like it doesn't mean it should be removed completely. Other people have other opinions.