Not at all.
99.9% of all the tobacco we talk about here is not available in Greece so I have to think of creative ways to get it from abroad anyway, no need to add another layer of difficulty by trying to find rare blends. Although rare means different things in Europe and the US: Gawith, Germain, Rattray's, Fribourg and Treyer (just a quick look at SP - all blends out of stock) are piss easy to find in Europe, while C&D is hard.
On the other hand I know too well the dangers in trying too many things, I don't want to end up with a wide and shallow cellar, and already the number of closed tins I have but haven't yet tried is straining me mentally. I fear that by trying more blends I am just wasting time and should just pick 10-15 blends I really like and drop some more serious money on them.