I agree with whoever it was that said it was like banning alcohol from pubs. It's a smoking place where everyone goes to smoke. It's not like they're affecting any poor innocent souls who are trying to have a cup of coffee - if you're in there then the reason is to smoke.
In fact, I actually think they should allow more of them to open - let all the smokers get together. Whilst they're there they might as well have a glass of beer as well. Oh, perhaps not!