Glock, Sig, and HK do it.
CZ wants to be a major player and grow, they need to start making individual slides and frames available.
I want to mill a P07 and a P10 F slide for a MRD, but not alter the slides of the original pistols.
I would have left Glock a while ago if CZ sold individual slides and frames to the consumer.
I found some P10 C complete uppers thru CZ Customs, but nothing for other models, nor any individual slides.
Glock might be a little more pricey for an initial pistol purchase, but when you start running your guns, the cost of ownership for Glocks can't be beat. (well, Sig may eventually surpass Glock, but they are just executing Glock's playbook, better than Glock)
and while I prefer the CZ P-Omega(s) and P10(s), when you really want to run a platform, you need to have these options to make your stable of hosses really work for you.