I am a HUGE 10 mm guy, but not in a revolver. I like my .357 for that. To each his own!

No for me.

I have 3 glock 20s a few 357 revolvers and is like the larger magazine capacity of He 10mm glocks, having just 6 rounds of it wouldn’t do it for me.

I have two G20s. That's enough firepower to satisfy me.

I am intrigued by the 10mm, but I don't want one in a revolver. The only way I might is if I already had a bunch of 10mm semis and wanted to add a revolver in the same cartridge, just for fun (I'm pretty heavily invested in 9mm semi-autos, and I can't quite squash the idea of getting a revolver in 9mm, so I can understand why someone might want to do this in 10mm). I don't currently have any 10mms, so if I was going to add a caliber it would likely be a revolver in .41 magnum, or a 1911, P220, or G29 in 10mm.

no need or desire for one,

I have a friend that has 2, both 4" (IIRC) and carries one regularly,

he likes them, but is a 10mm fanatic

nope...
do you ever really need a reason...
probably not, although I really love my 625 4"...
but to further muddy the water, I had the opportunity to shoot a Clements GP-100 conversion to 10mm and it was awesome. Just sayin' and I have no affiliation with, but here's the link:
http://www.clementscustomguns.com/gp100.html