Yeah I know what you mean dude, gotta love the fatty bong rips that you consume an entire bowl in a hit, and dont even feel it come out or in!
But have you ever pulled out like 3 grams of some dank with a buddy, grind it up, sit down with the volcano, and try to consume it all?
And sure, it feels like you get high as fuck on bongs because your annhilating that herb, and filtering out all that bad shit so your getting a FAT rip of cannabinoids, whereas a volcano releases less, but over time with the same amount of material will get you steadily baked...
Source: http://www.canorml.org/healthfacts/vaporizerstudy2.html
But no doubt the pics on the site didn't do it justice, your pics are definitely better, just looks like some HIGH quality, precision glass, I do appreciate the simple design.
If I had the money, and a small collection (as it sounds like you DO have between your friends) I'd definitely buy that piece!
Keep that shit clean, it doesn't deserve to get gunky or dirty