I generally divide tobaccos up into aromatics, Virginia predominant and English/Balkan types. Since aro is a very broad term, I tend to consider a blend "aro", though short of the technical term, if its predominant flavor and aroma to be purposefully different from pure tobacco itself---- such as fruity, honey, caramel, cherry, et al. The virginias are sweeter and the English may be smoky latakia forward or just pure tobacco. Once you find a category you prefer and lean towards, then you can further divide that one to find trends you prefer. Considering that you've only reintroduced yourself to the pipe a year ago, you are involved in a staggering array of brands!
The point being that (and maybe this is the wrong thread to say this) considering the current climate of anti-tobacco efforts and attitudes, companies pulling out, brands closing, FDA regulations, I wonder the wisdom of working oneself toward a point where your tastes are narrowed to only a few specific brands, types or flavors as your daily gotos which you depend upon? No matter how you stock (and by "you" I mean anyone reading), even if you have 200 pounds, any given one blend will eventually run out. What is a tin, a week? Two? Then what? What if it is gone by then?
My strategy is to, rather than becoming more discriminating and selective, to instead become more tolerant and forgiving. I have found only a very few blends I do not immediately care for, and I'm sure in time I could learn to like them. I am a survivalist, and to survive in the likely future tobacco climate, I must assume the worst and am working towards getting along with what I have, what I can get, making what I have and can get better and more to my liking. Buying bulk tobacco that stores and ages well, learning how to blend my own, learning how to age and alter tobaccos taking the master's efforts and accomplishments as the guidepost for what is possible and finding ways that years down the road, I know that I can make an aro, a Lakeland, a Virginia, English, Balkan type on my own to my satisfaction.
Anything else, tins I collect, unique blends, are the icing on the cake to enjoy as long as I can get them, but not to depend on, and to learn from them, how they are made, what was put in them, how they were cut, while I have them still here to study.
If I have to, I will grow my own.
Worst case scenario, I am better prepared for whatever comes, best case scenario, great blends will continue affordably in the marketplace for a long time to come. But never, NEVER underestimate the stupidity and arrogance of the governing class to do exactly the opposite of what the broader common sense of the consumer might suggest!