I guess if you don't want the programming then it seems stupidly expensive, I was surprised how much I took to it to be honest, and I deffo don't think I'd be using it as much as I do without the programming. I could just go on it and spin my legs, but it's hard to push yourself. The classes are really varied, so you can do a traditional spin class or you can do intervals, climbs, recoveries, low impact or what I mostly do, power zone training, don't even have to think about it cos they're doing all the planning work and you're happily training at your current fitness level and when the rides feel easy you re-test and go again. Easy to track how much better you're getting over time. There's new classes all the time so it doesn't feel stale and they're different intensities so you can do what you feel, long as you mix it up and don't do too much easy or high intensity, you'll improve.
Then there's all the other class types like strength, yoga, meditation, stretching, rowing. running... all kinds on it.
oh and I had a look cos I have no idea what gyms cost, for me doing on average 4 rides a week, for an unlimited studio spin class it'd be £180/mo!