After research I've found the downsides to wheel on: delay in power output, noise, wheel slippage, and tire wear.
If I'm not concerned about noise or tire wear and have my own PM, doesn't that mitigate some of these downsides? Is there really another reason to spend $200 more on Core or $500 more on Kickr?

Been riding a KK dumb trainer for years now so I'm very much use to wheel on trainer. I have a dedicated training wheel and just use old racing tires. I have a cave in the basement away from everyone so no real issue with noise.