If you don't need them for a specific audition, I'd wait to see what you need for the specific show. If you do need (or just desperately want..

) a pair before that, then buy one or the other, and be prepared to buy another pair in the right color.
You might want to check out this link to the capezio outlet. They have some REALLY cheap. I actually bought a pair of $10 shoes and then spray painted them when the director decided she wanted "ivory" shoes instead of my tan character shoes.
Capezio outlet