We have numerous very expensive pieces of fitness equipment that we use quite regularly. I mean, sure, you don't NEED expensive equipment to exercise, but if you don't do it without the expensive equipment, and you DO do it with the equipment, why not buy the thing?

Of course, there's plenty of expensive fitness equipment gathering dust, but don't let someone else tell you "you don't need all that stuff" if it works for you. If it's stupid and it works, it's not stupid!