Oh London, and it's astronomical gym prices.
I have been a member of our council's leisure centre since I moved here. At 42 pounds/month it was cheapest deal I could find. And while I like the staff, the gym is not very inspiring (particularly the changing rooms). It can be hard enough to work up the motiviation to get to the gym, and when it's not very nice, it's only that much harder!
Well, my direct debit got messed up last month, and my membership effictively cancelled so I decided to look at some of the other gyms in the area today. And oh boy, did I fall in love with Virgin Active. It was sparkling clean, and big, with lots of great classes. The cost--nearly 60 pounds/month (I paid $60/month to go to a very similar gym in NYC).
Still trying to decide if I will join. Looking on the bright side--if I'm paying that much, I will definitely be there every day!