As both an Apple and peloton consumer/fan here's my 2 cents.
First - For people calling them overpriced, remember for years you likely paid an extra $100 to double your storage on your phone while Apple laughed all the way to the bank...
Second - why do people by them when there are (cheaper options, you can ride outside, just buy a bike and use an iPad, __ other option). Yes there are cheaper options, but like the Apple ecosystem, it's all about integration. You can use the camera to "ride" with friends that also have a peloton, compete with them on the leaderboard, send "high fives", etc. You can also go back to previous rides and beat your record if that's your cup of tea. They have badges for different challenges, various artist rides, etc.
For people who say just ride outside, not everyone has that option, it may not be convenient, and sometimes I just want to ride for 5-10 minutes after a strength workout. I live in a very hilly development, so its almost impossible to do a "flat road" bike ride without driving 25 minutes round trip to the closest trail. In that amount of time I can do a pretty decent workout with my peloton.
I'm not going to justify the terrible business decisions they made, unlike an iPhone, there isn't enough to change on a spin bike for people to get a new one every few years. Plus if their bike did break after a few years, their customer base would get pissed and leave. They actually build a quality product, but once people have one, they will likely keep it for a while. Until mine doesn't work any more, I see no reason to buy a new one.
I also think the monthly membership is a bit much for those with their equipment, but to their credit, they've added a boat load of content over the past few years. Yoga, Running (outside and on a treadmill), strength, cardio, bootcamps, etc. At least you can have a bunch of people on 1 membership, so my wife, myself and my buddy who doesn't have a peloton all use it.
It's not for everyone but if it's helping many of their users in their fitness journey, all the other crap doesn't matter.