So, having basically everything from a "cheap" (don't get me started, I know) NG3/10th anniversary, up to a Prima Artist, and having dozens of gigs on each along with hundreds of rehearsals, pit time, and practice at home on each Canadian model...
I dunno. The Canadians, yes, are a step above the Chinese (Combustion/NG etc). There's more options available if those options mean something to the buyer.
But, I think the Chinese ones still hold an important spot. They offer a very compelling set of features, plus all roll through the Canada shop for inspect/setup. If you ONLY want a Dingwall, 2x or 3x pickups, and EMG or DG pre, and no fancy wood or finish, well, you won't be served a whole lot better by stepping up to Canadian models. Heck, you can even get those decent quilt topped Chinese ones now, too. The line is certainly blurred.
The neck, I feel, is the big differentiation right now. This NG3/10th plays very well, but, I'm certainly noticing it taking slightly more effort to play than my ABs/Z/Prima. Setup overall is very nearly identical between them, though I don't know for sure what strings are on the NG. The "in the hand" feel of the NG, for me, is slightly slower and I hate the word, but, "clunkier". That's truly a terrible word for it - these are not chunky, fat, baseball necks in the slighest. But especially compared to my Z, it feels more... substantial? If that makes any sense.
I guess what I'm trying to say, is, I agree with BurningSkies. The Chinese models are very, very much top-notch basses and can serve any player in any situation. I don't think Nolly would lend his name to it if that weren't true, and there are a ton of other pro players out there on huge stages playing these. If the Canadian models weren't available, I'd be perfectly happy with a Combustion/NG. But, I like fancy, I like feeling like I'm handing Sheldon money directly (at hopefully higher markup), and I like the idea that some dudes/gals in Canada are putting their art into something I order from them. A sense of Pride, I suppose.