fanime is gonna be my first con, can people answer my questions?

[ylimechan]

I am clueless about the fanime con, so i have a couple questions.
1. are all cons cosplay?
2. If the fanime con is a cosplay con, then where could I get the lucky star cheer leader uniform for under $40? I wanna go as konata, and I don't need the wig, shoes, or pom poms.
3. what kind of things do they have at the con?
4. how much money does it cost to get in the con? like $30 right?