This is being sold as 'new technology' that retains the same 'airwatts' and saves energy.
I'm nowhere near as good as these guys, I just make humble glass fairy wands to decorate my houseplant collection, tiny sculptures and some pretty glass beads to wear. I bought the Herbie because it's a one knob operation that gives me a pinpoint flame and a serious flamethrower in one easy turn. I like clear borosilicate for it's ice-like appearance and soft glass for it's lovely colors.
Also, the herbie has a pilot flame, so I can use a foot pedal to save on air, oxygen and propane, since a lot of the time in glass blowing is spent letting the glass 'coast' and that doesn't need a flame, just patience to let the glass find it's own shape. It's a little bit like programming in that sense, you code some stuff and then it magically takes shape as you think about what you just created :-)
It's all about the process.