Sidekick lx 2009 or blackberry bold?

Have the sk lx right now and I've been thinking about the bb bold. But I'm wondering who ever has one how much do you pay for unlimited IM, texts, internet? All of what you get unlimited on the sidekick for ony $20 bucks. But here comes the new sk and now you can watch youtube videos so I'm still undecided if I want to stay with the sk or go to another phone. So people who have the blackberry bold can you tell me somethings about it that makes it better than the new sk..