Sigh. After my post about a forum of enablers...
1) I agree with carnifex knifeworks. I'm not a fan of PCCs. In short, they combine many of the cons, while missing the pros of either a pistol, or a carbine.
2) the whole point of 10mm, is that it's a powerful rimless semi-auto pistol cartridge, that has the ability to combine near full-bore .357 Magnum power, with the higher capacity and easier reloads of a semi auto.
In a carbine sized firearm, though, intermediate rifle calibers beat it.
Especially when cost is a consideration (and all joking aside, it always is), to me, a 10mm PCC is an unnecessary and somewhat pointless expense. The HiPoint 10mm PCC is somewhere just under $400. There are several 10mm pistols available around the $600 mark (with the S&W available under $600).
While 10mm pistols have rapidly become one of the most popular choices for bear defense for folks venturing where they roam, consider what your projected role/use-case would be for a 10mm PCC?
What would a 10mm PCC do better, than say, a 300BO SBR or pistol? 300BO does very well with barrel lengths as short as 8-8.5", with the ability to either use supers, or subs with a suppressor (where they literally fall into the PCC muzzle energy range).
I'd recommend saving the money, while mulling over what role you're looking to fill.