I wanted to attend the Cirque Du Soleil show in Orlando, FL a few years back while we were at Disney World, but opted not to due to the high ticket prices. This show was obviously on a much smaller scale (as they were sharing the stage with the symphony,) but 100% FREE! I absolutely love the Woodlands Pavilion due to the fact that their performing arts season offers free lawn seating- and if you just MUST be under covered seating, it's only fifteen bucks! Incredibly reasonable compared to the Houston theater district.
Each summer they have one Houston ballet performance, one Houston Opera performance, and about 6-8 Houston Symphony performances, all at the above prices. I don't make it to all of them anymore... (I worked as the receptionist for the Pavilion a few years back and used to attend A LOT of shows,) but I try to go whenever I can.