Tons of them.
I've had a bunch of setups where you could plug in your road bike into a stationary setup, with virtual screen and everything, but the hassle of setting it up was always just a little too much friction.
It'd be the logical N+1 addition to my stable of more expensive road, cross and mountain bikes.
You have no idea how much people are willing to spend on their cycling hobby.
If I want a one hour work-out, going to the gym adds 2 times 10 minutes to go back and from. The bikes may already be taken. Music is blaring out of loudspeakers. There's no training included.
This is not about being lazy, it's about being rich enough to trade time and convenience for money.