Well, now, I guess I wound up with a Chinese copy. The blade is certainly tough enough but it seems to be shorter than the genuine article (I thought they were just shortened for some reason) and the handle is rough. I did get a bayonet sheath with it, though.
I live in Virginia, which in some years is semi-tropical. Things grow like crazy, except where you want them to. Ordinary Collins machetes (and even cheaper copies, not necessarily Chinese) are widely available. They are really all one needs to deal with the vines that grow around where I live, provided you keep the blade sharp. You have to treat it like the blade of a mowing sythe and pause every now and then to touch up the blade with a stone. The blades on such things are only so-so and will even seem a little flimsy but it's not the sort of thing you'd want to spend a lot of money on. A machete is not a specialized tool and for some purposes, something else may serve better. In the hills where I grew up, people would make their own corn cutters out of old butcher knives, for instance. But people like that never used a machete for anything.