Why not?
Gives you an insight on how well the top players actually play, you get to experience the travel, the organization, and pressures of performing your best when sometimes you don't feel your best.
Just try to hit some good shots, embrace the fact you'll probably be playing some 5.5+ guy, and try to conduct yourself in a professional manner. The best part is getting to hang around and watching the other 5.5 thru 6 players, while having the freedom of a participant to go most anywhere you need.