The art form being taken seriously, and performers being paid properly. Years of training/expertise gets ignored because newbies do are prepared to do it for free!
Do it for the love not the money, even on a budget make you act the biggest it can – imagine you are in Vegas!
Waking up with your pillow covered in glitter!
The back stage camaraderie that comes with working with professionals.
That post-performance feeling.
The audience who feed the performance with their energy and enthusiasm, getting dressed up and going out there knowing that they are looking at you only.