I don't feel fixated, but if I like one blend in a brand I usually try others. Because of my taste for burley, I just naturally gravitate back to C&D because they took up burley, the codger low-end tobacco, and re-discovered it as a base and condiment in a variety of blends, with art and good taste. McClellands certainly sold me a few tins over time, the best of the Virginia artists. I still like Dunhill blends, though I have enough on hand that I may not be trying the Peterson versions for some time to come. Semois was like magic, exotic and unexpected, but not too many versions to try, though I have certainly mixed it with this and that, usually to good advantage. Russ O. is a member here, and I haven't tried any of his blends that I haven't found enjoyable, and some are "permanent party" in my stash. Seattle Pipe Club is substantial, each of their blends filling a well-thought niche. My brand loyalty is hard-earned, and I respect the blenders, real pros.