Last year I didn't even go to Worldcon (Glasgow), but I went to Westercon. Next year I most probably won't be going to Worldcon (Yokohoma Japan NOT Tokyo*) but I plan on going to Westercon (Bay Area, San Mateo Marriott).
*I've been to Japan 3 times already including once with Susan for about 8 days for our 10th wedding anniversary. I'd be a lot more interested in going if they had picked a more interesting venue like Kyoto.
It is also worth noting that this is my first con since 2004 where I am fully employed. (I got laid off just before Arisia 2005.) While I haven't gotten paid in my new position yet so I'm trying to not spend too much money, it is nice to not have to totally worry about money.