Depends how much you like...
Window shopping. Strip clubs are pretty much window shopping for sex with the only exception that you can never get to test out all the features she has.
versus MP's and SP's where you get to handle all the knobs, get under the hood, make her purr, make her roar, put your keys in her ignition, and race her around the track at 260 MPH.
They both cost pretty much the same but life is a whole lot more fun when you get behind the wheel than when you sit there staring at it in the window.
Nuff said on this one...