I got a Bikeerg a year ago and it's great. It's like a regular time trial / workout bike but has a belt instead of a chain, which makes it more quiet. The only noise is from the fan / flywheel that creates the resistance as you pedal.
The $1k price includes a PM5 monitor that shows pace and many other details. There are no monthly fees. You can use Zwift and other programs along with it if you want but I haven't had any need or desire to do that.
There's an online meters list each year, free online log book for your training, and online rankings for various distances. I used a regular bike with a wind trainer attachment for many decades along with riding outside, and now I only use the Bikeerg.