I started taking tango lessons a few years ago and now I'm obsessed. I really want to go to the tango festival in Buenos Aires in August and watch the competition. I've looked at airfares, and they're quite steep so I would be on quite a budget once there. Are there a wide variety of budget places to stay in Buenos Aires? And what is the general cost of food like - I wouldn't want anything fancy, but is there much of a basic cafe/street food culture? I'm also a vegetarian, and I know Argentina is famous for its beef; would I struggle finding things to eat?
And also, obviously I'll be in Buenos Aires for the tango festival, but what else is there that's an absolute must-see/must-do there? Again, nothing too expensive, which I suppose also means nothing too far away!