Kind of like when my dad bought an elliptical machine and my mom called it the world’s only $2,500 clothes rack.
If you are handy doing your own repairs it's also very cost effective since not too many tools are required and compatible parts are cheap, easy to find and easy to install.
My road bike cost $300 AUD, I have maybe spent another $250 on parts and tools. I have been riding to and from uni and now work pretty much every day for three years and I love it to bits.
[1] https://www.chainreactioncycles.com/au/en/tacx-vortex-smart-...
[2] https://www.99bikes.com.au/accessories/indoor-trainers/smart...
[3] https://www.pushys.com.au/accessories/stationary-stands/smar...
Peloton has a mechanical knob that controls the resistance.
It's clear that a lot of people love the Peloton experience, but it's a pretty lousy training tool for any kind of real cycling.
You can also get a roller with resistance, that is probably the best investment I ever made.
For people in the US I recommend http://www.insideride.com/ and in Europe the equivalent is this: https://www.elite-it.com/en/products/home-trainers/rollers/q...