There’s definitely a division of opinion here. I wonder what the pipe-makers would say? Or maybe a vote here would be good. It’s either aesthetics-only or taste. Or simply put, the briar has a significant effect on taste and quality of the smoking experience or it doesn’t. What’s more, there’s the complication of whether it’s just down to particulars of the given briar and it’s conditions, particulars that can change all the time, or it really does have to do with a region, process, and/or species and can be actually generalized to a brand of pipe or era of a brand of pipes. Is it more like, “something about the briar of one tree over another,” or “one batch” or “a good year” made some slight or not slight differences? Or, that such and such brand uses such and such process or such and such type of briar that really consistently produced such and such experience?