Jesec, you and I on the same par now, I LIKED TO TRAIN ON COLD HAND, including my students.
I used to go for local piano competition, where at the back stage I saw some people wearing gloves, because we have no acess to warm up room at all. Its only a local Estedford paino comp.
I was thinking, these people are really serious about there hands being exposed to cold, especially the comp its in the winter season. Well, I thank you for myself and my former teacher who taught me cold hand playing is best for self awareness for mistakes/slips. At end of that comp, I won 2 out of 3 section I entered, WITH NO GLOVES

, last one came third.
But DO NOT EXPECT TO play full speed for Chopin op10-1 when your hands are cold.

So its up to individual, take it or leave it.