How much do you pay monthly, and where do you live?
My girlfriend and I each pay $590/month. We have a huge 3 bedroom apartment with a front and back balcony, so its not such a bad deal (for NYC). Our roommate is moving out at the end of the month, so the whole place will be ours, but we'll have to split the rent...$875 each!
I wouldn't mind if I were paying a mortgage, because at least then its an investment. Paying rent is like flushing money down the toilet.