Yep. And bigger gassers are "better", and there ain't NO doubt about it.
I said bye bye to glow some time back, and haven't doubted that it was the right thing for me.

PROs

Lower operational cost.
Less mess.
No slime.
More "real".
Lots less "field equipment"

CONs

Smells bad.
Technically more complex.
Needs ignition batteries (if EI engine).
Can be really noisy.
Can create radio issues if "not right".