If we pick one city and do a "tf2 tournament" we'll be wasting money. If we want to do another international tournament, then how about we try to work on getting funds for Dreamhack.
Not just a community fund, I'm talking the whole nine yards. We contact Gabe/Eric/Robin, talk to them about it and if they could help if the community raises funds. Contact sponsors/companies (Evil Geniuses/Steelseries/Razer), and tell them what we're trying to do.
Even contact MLG and try to get stuff to get on the pro-circuit. I know, "MLG is bad blah blah blah." If we try to do this though, we could two things. 1, show that we're a strong fighting community that doesn't want to die. 2, show off that a fun pubby game has it's competitive side.
Doing things as a community has always been Tf2's best chance at survival amongst the other games.