When it comes to the number of blends in my cellar that I am yet to try, it is fairly substantial. That being said, any single blend represented in sufficient quantity has been thoroughly sampled and determined "worthy."
Basically, when I started I spent a year and a half researching and smoking my way through many different "blend genera's." Once I settled on some favorite's (really, there weren't many I didn't enjoy), I went to work on building my cellar. I slowly started buying multiple tins of blends I knew and loved. And when there was something new that peaked my interest I bought 3 (1 for now, 1 for later, and 1 for much later). The idea was always that I would buy more of what I really love, but eventually got to the point that there was just no more point in buying additional tobacco.
Today, I have a better selection of blends to choose from out of my own cellar than any tobacconist within driving distance of my house. I have a very healthy supply of blends that I know and enjoy, with a tremendous selection of new blends for when my curiosity peaks, or I'm in the mood for something different.
I guess I was fortunate in that it was easy for me to find / separate the tobacco's I liked and didn't like. I found some blending houses that worked for my tastes (helping me navigate my purchases), and some that definitely did not (which I tended to avoid). Once I found a criteria for my tobacco preferences, building a cellar was easy. However, applying the breaks, and eventually pulling out entirely, was much more difficult. :
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