Boutique pipe tobacco is out there, but they don't do the same kind of advertising the cigar guys do from what I've seen.
IMHO strang is worth the chase. But I think the same of the Esoterica blends I've had the opportunity to smoke. Doesn't mean that there isn't great stuff available for less money and investment of time, but I look at it like I do cigars. If I want to have the experience, I can justify the money. I wouldn't smoke it all every day, but I can jar it and enjoy it over a longer period of time than I can with a rare cigar I paid 20-40 bucks for... YMMV.
As for what I'm chasing, the HU blends are what I'm after. And an OG tin of three nuns original blend. I'd like some pelican as well. Gotten close to snagging a tin a few times but there was always something else I wanted more.
Russ622 just blended up an English for his shop called Cyclops I want to try also... Ha ha.