Where to find cheap Zumba clothes?

I recently started Zumba and loved it... the only problem is all of the clothing is crazy expensive. I wouldn't want to spend more than $20.00 on something (So I guess the pants are out of the question) I just can't seem to find anywhere online that is cheaper. I went on Ebay and Amazon(bust) but there wasn't a lot of options. Let me know if you KNOW of anywhere I can get Zumba clothing for a cheaper amount. Thanks!