Stylus Warm-up Time

I have never put vinyl on and thought, "I should listen to this again right now as it might have improved itself." My turntable is next to my gear rack on its own little table and gets ambient heat from my tube power amp, although COME ON MAN...

David99. What heat setting and amount of time do you set your microwave at?

is there a special mechanism to hold the record off the floor of the microwave turnstile giving more even heat distribution?

I tend to listen to vinyl more in the Summer, when I find I need not worry about the cartridge warm up. 

I must say that I find cleaning the cartridge stylus and the record surface and removing static electricity also important. I find 45 rpm rereleases quite good but so short duration as to be a pain. Until I learned that most master tapes were being redone in quad DSD, I was hellbent on digitally capturing my 45s and doing equalization post digitizing. Now I await the quad DSD downloads.

Audiotomb-the LP spins on the microwave turntable of course.
I push the button for the popcorn setting.

I think Stylus warm up time exists, but imo Listener warm up time plays a bigger part, and takes longer, especially for those still working, married, kids... 
In this case Listener warm up time will vary based on the kind of day one is having. During extended periods filled with anxiety, audiophiles have been known to liquidate gear, as they just can not get set up to listen, and put the blame on the gear :^)