indoor yes I would not get bored but would love to own one. what is out there if had that 4,000.00usd set up I'll be on it.
If I had to go to a gym to use it, it would either be a wait, and time limit.
If had to go to a gym the bikes would be far better, or all broken down to use.
If outdoors the scenery can be just as boring as indoors , and stale air as well.
local riding can be dangerous as you make it..
So I preferre to have my own and be on my own rather be on one and look like a hogger to some...