The main problem with the gym, for me, is getting there. It's not far, it's just a mental thing. Once I get to the gym, working out is not a problem, but convincing myself to go is quite another thing.
When I joined this gym, I got a personal trainer. There was one day a week I *had* to go because I was paying for it specifically. The PT gave me a weights workout that I was to repeat two more times that week (with at least 48 hours in between each workout). On the other days I had many classes that I really liked and they were all included in my membership. So for the first 2 years, I was working out all the time because I do well in a class/teacher/homework environment.
But classes changed, my schedule changed, and I got switched to PTs that I didn't like as much so I eventually stopped PT, and over time I went less and less. Nowadays I go about once a week. Worth $30/month? I don't know, but since it costs a lot for that first joining and this is a much better price than their current ones (I got in before they opened and got an amazing deal), I will probably stick with it until I stop going altogether.
But getting to the gym (especially in this snow), that's the hardest part, trust me.