That is a problem, mine's going to take over the living room but the only people it could fall on here are old enough to know better.
It might be worth seeing if your local council does a gym scheme, ours does one for about £25 a month where you can use any of the local leisure centres' gyms, classes and pools. Loads cheaper than the franchised ones round here.
Sure you'll be fine though, there are people who lose loads at our class and they drive the quarter of a mile to the WI so not much exercise incorporated there lol x