I have a close friend, Mike, who's a longtime lurker on this forum. He has a large number of Jess Chonowitsch pipes, an Adam Davidson, and a beloved old Bari bulldog that he lovingly refers to as his "putty bulldog." He is unique among my pipe collector friends in that he has less than two dozen pipes and probably fewer than a dozen that he has smoked, having sold many of his pipes in the past. He went through an Ashton Sovereign phase and more recently a Peterson 12-1/2s phase. He has none of those Ashtons nor Petersons any longer. By far the majority of his pipes are Jess pipes. Yet he almost always has his Bari putty bulldog with him and smokes it frequently when we're together. It's one of his first pipes and he won't part with it, but not for sentimental reasons. He says it smokes too well to get rid of it.
Marty Pulvers thinks they're a tremendous value, if not the THE best value, on the estate market -- particularly among Danish pipes.
P.S. There's hardly any putty.