Shawn, how much are those big green eggs?
I had a $10 CdnTire charcoal bbq for about 4 years until it was too rusted out to bother using (and we moved). I bought a slightly more expensive one for $40 which is in great shape so far (we only bbq a handful of times a year...don't let me get into the dangers of carcinogenics).
However, if i go looking for a 'lifetime' unit, i would say that green egg looks like a possible winner.

"Those who preach the myths of audio are ignorant of truth."