What do you think of gyms ? Do you like going there ?

I have been going to a gym for a while. It keeps me fit but it is becoming repetetive. I am starting to feel like a hamster running in a wheel. I think gyms are an artificial product of modern society along with tinned food, m media etc... i am now more attracted to real adrenaline-filled sports... skydiving, swimming, rockclimbing... but I don't have the time. What do you think ?