Sure, but does anyone think there's a basis for it even with outdoor grown? I mean, it's an interesting question, but maybe far-fetched - and seems potentially at odds with the concentrates market you're talking about. Here I guess the wine analogy would point to brandy, grappa, etc. Which do sometimes feature varietals, but as far as I know the exact provenance of the grapes that go into a grappa are not such a big deal, as with the wine where you're closer to the vineyard.
Concentrates seem like kind of a wild card in the game if the win is to develop a sophisticated appreciation of cannabis. It's complicated enough with flower buds, which have a sort of inherent authenticity as long as we assume (as I do) that packagers aren't sprinkling them with anything.
A legal national market will expand in all kinds of directions & people will ultimately decide what endures by what they buy.
I think Sam's observations about dry sift are valid. It's been a long time, but various hashes are quite distinct from each other depending on their origin. I doubt we'll see much that's hand rubbed, too much labor, but dry sift & choice tops could easily end up like brandy & wine. There are all kinds of brandy, grappa being only one of them.
One of the interesting things about dry sift is that it can be blended to create very consistent products year to year much the same as table wine & tobacco.
Oh, God! It'll be like Marlboros!
Some of it probably will be, I'm sure. And why not? If that's what consumers want, then the market will provide it.