Let's ignore the girlfriend who is loving, pleasing, attractive, and free,, and focus on illicit, no strings attached, sexual gratitication.  These are the choices:

1) local "massage" parlor where you could have sex with a beautiful yourng female sex worker.  $340

2) local massage parlor where you could have a nice full body massage by an attractive female masseuse and a happy ending for $100

3) Men's health club, where you can enjoy saunas, steam rooms, land ittle nap room, and usually some dude will end up wanting to suck your dick $25 for four hours.

4) Adult arcade.  Pay $7 to watch some porn, and dudes always come in to suck your dick, suck your ass, or want to be buttfucked. 

5) jack off for the 1 millionth time to images of nude women for free.  

Interesting set of options, no?  So what would you choose?