The nearest YMCA is about five miles away, I think - I go by it on my way to church. It's brand new - maybe a year or so old, if I remember right.
A full membership costs $43 a month without discounts, which also gets you into a lot of the classes if I ever wanted to do that. I'm not used to paying for a gym (last time I went regularly, I was in the military and got in free), but most gyms look to be a LOT more. And I guess it'd take me a long time to buy even one really good machine at that a month. They may do discounts if you commit to several months at a time, too, I dunno.
Do check it out! If it's that close, you could go in early before work, or on your way home. If it's like ours, they have nice locker rooms with showers.