I'm with these guys too. Been using a $15 Brunton stove for 10 years now with out a glitch. Sure the Jetboil may boil a little quicker than mine....by 60 seconds, maybe, so who cares. I've done 7 day pack trips, boiling morning, noon and night and never gone through a whole iso/pro mini bottle.
My buddy bought a MSR knockoff on Amazon for $6.99. The thing is surprisingly solid and hasn't given him any issues in two years.
If you’re looking at light weight, consider this. My stove, mini bottle and aluminum pot/mug (just big enough to fit the bottle inside) weighs less than the Jetboil, and costs far less.