In reply to MRJ:
I'm the same, love mine and still on the original lighter. I'm a smoker so generally have a light anyway so not worried. Recon mines 4 years old. Another con I've failed mention. When you've had a brew, you pop the canister and burner inside the pot to pack away, the sight bit of water at the bottom of the pot rusts the rim of the canister leaving rust stains inside the pot. Every few trips I clean mine up with a brillo or other such wire wool.
It always comes down to the same conclusion no matter how many times the jetboil pops up here. conclusions are:
Jet boil:
stability, cost, pezio lighter. Very frugal on fuel and very fast. Perfect for car camping and cragging.
MSR pocket rocket and Ti kettle:
Cost again, stability again but not as much as the JB, needs lighter.
Quite frugal, quite fast but with its compactness and weight <or lack of> perfect for anything lightweight - bivvy, winter climbing, backpacking etc
The Primus express spider looks interesting though, it has a remote canister and pre-heating tube. The screw where the pipe goes on the can looks too high to me though when compared with the MSR arrangement....
Need to get a life, I like stoves just for the sake of them!