I'd pay around 30 if I didn't already get a membership for free.
I figure, i'd be there at around 20 times a month. Use their weight equipment, pool, bball court, racquetball court, steam room, even get the opportunity to meet women of a higher caliber then those outside of the gym and to top it off I will look better by going consistantly... hell, all of that is worth the $1ish/day that it averages being