I have 2 9mm's and I reload all of the calibers I shoot. I have 3 metallic presses and one shotgun press.
I wanted a caliber that most don't have and the 10mm was one that offered great ballistics without costing a ton in hard to find components. 10mm projectiles are as common as 9mm.
I picked the Glock for a number of reasons #1 being price and #2 being flexibility with the ability to change calibers from 10mm to 40S&W, .357 Sig and 9x25 Dillon.
If the XMD had a 10mm version I would have only order one gun.