Of course, it depends on whether you think it is expensive or not.
Generally, it costs about 100 yuan to make a dress.
The clubs in our school have to hand in 100 every cosplay.
If you compare this money with what you bought in a specialty store, it is not expensive.
Hmm. How interesting
In fact, the most important thing about cosplay is funny scripts and cool props.
A suit has no effect.
You have compiled the script.
Dress casually and get something attractive, such as a big knife or something.
The effect will be better than spending a lot of money on clothes.