Lots of vapourizers have threads of their own.
I think you might be stretching it a bit when you say people put the LB in the same league with the Volcano, but I get your point. Perhaps the aspect of the MFLB that I admire most is the elegance and simplicity of its design, but that came after I bought one. I got it because I wanted a portable, the price was excellent, and it had the most remarkable warranty I've ever seen. I think those things appeal to a lot of people.
The LB is small and stealthy, and does its job well if you learn how to use it. It's a power-on-demand device, meaning that it only heats when you are taking a hit. That's a huge plus for me. It has great flavour, although it isn't pure. The LB adds its own slightly woody taste to a hit, which I find pleasant. I can extract everything out of a load with the LB, and it doesn't need a large load so it helps stretch my stash.
Some people see one or more of those points as detriments. If you need a quick, large hit, the LB probably isn't for you. Not everyone is willing to accept the minor flavour that the LB adds. There are those who cannot or can't be bothered to learn a good technique. On the other hand, every head shop I've visited in the past few years has told me that the LB is by far the best selling vapourizer, and they get few complaints. I don't know if I've answered your question, though. I think you probably need to try one for yourself.
@magicflight
