for classic shape pipes, baki, IMHO, isn't worth the extra money compared to altinook, imp or even sms pipes.
they all offer pretty good meerschaum, well drilled, with quality construction. i own classic-shaped pipes from all four companies and am happy with all. YMMV, but i bet you'd feel the same if you could afford to buy a pipe from each and be able to compare them personally.
people will tell you baki is superior when it comes to intricately carved figural pipes; i have no first-hand experience that suggests baki, or anyone else from this group, is head and shoulders (lol) over the others.
but the baki advocates are more vocal in extolling his figural offerings. he represents well-known carvers.
"storient," a member and poster here is now supplying meerschaums to at least one respected on-line retailer and probably sells direct via a webstore. check him out.
read the other posts about meerschaum pipes and you'll find references to several other meerschaum specialists, with opinions about price, quality, service and the like. all have their advocates (and some will have detractors too, i suppose).
good luck in your quest..smoking meerschaums is a special experience for sure. i love mine, but some smokers are uncomfortable with meerschaum's supposed fragility; i smoke mine for taste, others are intrigued with the coloring properties. some, like me, are satisfied with classic pipes, others love those specially carved figurals. but generally, regardless of which type we choose, meerschaums hold a special place in our smoking rotations.
jr/john