I've spent time with Rad Davis in his shop observing him make pipes...the first time I was with him, I was amazed at the number of boxes of "pipe firewood" he had...these were pipes that had been drilled and shaped, anywhere from 1/3-3/4 of the way, and low and behold a flaw was discovered. A flaw that was past his standards. When a pipe maker spends as much time as Rad does on one pipe, all of this time and cost of resources adds up. I would have loved to walk out with any of those "rejects" that we're going to be gracing his fireplace that winter. But has has set a certain standard that he lives by and his expectations of his pipes are very high...and rightly so.
Working with wood can be very tricky and some pipe makers don't have the luxury of abandoning a piece of briar bc of a sand pit or flaw, and I'm ok with that, but at least price that pipe accordingly. Don't expect me to pay hundreds (>$300) for a flawed briar. I think these flawed pipes can allow consumers an opportunity to purchase a good artisan pipe at a discount. If an artisan carver chooses to sell a flawed briar, at least price it accordingly. It may give some consumers the opportunity to own a pipe by a maker that they might not ever be able to afford. I would never fault a carver for not selling a flawed pipe, but if they chose to do so, I would hope their ego wouldn't be so big as to think they could still price it at a premium just because their name was stamped on it.
As far as fills, I have my own standards as to price, maker, and shape. Sometimes I'm willing to accept a pipe with a fill, if it "speaks" to me. But it's on on a case by case basis.