I play at UofL's rec center, but I have heard that JCC has some great courts, as well as many of the other fitness centers around town. The least expensive place would probably be the YMCA, if you are close to either the downtown or northeast facility (i think they have courts), otherwise it's not worth it. Also Humana has two fitness centers downtown, the 1 in the humana corporate building on 5th between market and main definitely has courts, a lot of people play there, and the membership fees are around 35 a month for those not with humana. Hope that helps a bit.