BGEs are awesome!
They’re a GA thing. They started on Buford Highway in Chamblee way back in the 80s. I mean obviously that style of cooker is many hundreds of years old, over a thousand. But BGE started in the ATL area way back in the early 80s, and was really the beginning of that phenomenon in the U.S.
I honestly never used mine much until I married it up with modern technology. Fiddling with the vents to maintain temperature was just a huge PITA. The Thermoworks Signals and Billows solved that problem for me. 225F low and slow? No problem, now!