Sex with a pro and bungee jumping are a lot alike.

It costs about $100.

The thrill lasts about 60 secs

And if that rubber breaks, your ass is dead.

I know it's a joke but

Not at all wanting to start a controversy here, but $100 for a quality 30 minute session is not hard to find here.  I like to hobby frequently, and funds are an issue so I aim for this price range for 30 min.

A number come to mind but Sunny's girls are all at $100 for 30 min and I have sampled a most!