Volcanoes are the shit.. I'll prolly get one if I ever really get back into smoking herb, sure I will at some point, when I get a job and get completly off the smack.
I've seen some pricy tubes in person, I saw a rainbow tube once in a shop that was all solid color sections made into a approixmately 24 in tall tube prolly 2-2.5 in around and really think. It was repeating rainbow colors from bottom to top, it was either $2,500 or $5K I forget but it was pricey.
http://www.glasspipes.org/Gal24857_gong_slides.asp heres some slides that little solid pipe sculptures attached, pretty ill for slides
http://www.glasspipes.org/Gal10944__GALLERY_OF_TUBES_.asp heres some sick tube, no prices tho I assume lots are over $5K cause of all the sections and work
http://www.glasspipes.org/Gal16604_ROORCLAW_TRIO.asp these are off the fucken hook, custom roors with sculpted color sections inbetween the clear parts, sure there a couple G's at least..
I love this full color type shit..
Well I'll stop there before I link every tube I like from that site cause theres too many, go to glasspipes.org if you wanna peep more or just plain pipes, theres something like 109,000 pics on there and 1000 artists.. prolly not 100,000 pipes cause everyone usually takes 10 diffrent agles of each peice but tons regardless..
Its not a commercial site just a "gallery"
Oh yeah I like that twisty full color wrap and rake peice in the last post, nice.