Any racks that use coasters/ wheels ?

Once upon a time I used pointy metal feet galore, but for the past few years the only place I've had pointy metal feet is under my turntable. Whether or not I'm taking a sound quality hit with the current regime I just don't know. I just don't care very much, either, as my stereo has never sounded so good since I had a special room built for it.

I believe you can get butcher block racks with threaded inserts and then find rollers or easy glide feet.

"Never understood why people don’t like coasters for the racks."
Simple. Rollers do not stop vibration.

"Not sure the isolation value is all that meaningful," I am 100% sure that isolation is meaningful even if not using a tt.

Another option is Herbie's Audio Lab Threaded Stud Gliders, i believe they work for racks as well.

I think the vibration rationale for improved sound when using coasters is laughable The only people saying they hear a difference are those marketing the product.

Yes you need to isolate a turntable obviously. components come with special feet that offer isolation as they should.

And amplifiers certainly don't need isolation as they are built like a tank and quite heavy. 
 

Maybe if you live on top of the subway platform or a raging Street prone with lots of noise but then why bother if this happens.