Skydiving
I did a skydiving course back in 2003, probably the best decision I have ever made. Since then, I have made 394 jumps out of various aircraft, a helicopter, and a balloon. It is an incredibly indulgent sport which can eat through the contents of your wallet faster than John Prescott can eat a pie.

Very rough estimate of expenditure so far:

Static line course £1500
Parachute £3200
Reserve repacks £250
Jumpsuits £350
Additional gear £300
8 years BPA membership £950
Insurance £400
Jump tickets £7400
Transport/food/booze/other £god only knows

Pissing around in the sky with all your best mates: priceless
(anvil, Sat 30 Jul 2011, 14:58, 3 replies)

I've done 1500 jumps in a similar timeframe. You could probably add a zero to your expenditure to get mine.

Again, totally worth every cent :-)
( bob dinosaur, Sun 31 Jul 2011, 14:15, closed)

nonono, MY cock is bigger

(Quinton had to abandon other account as i broke it, Sun 31 Jul 2011, 21:49, closed)

that didn't seem like boasting

( Vipros. clever got me this far, then tricky got me in, Mon 1 Aug 2011, 17:05, closed)