The Jetboil Flash is $99 at REI. The MSR Reactor is $159. Either one is a chunk of change, but either one should also last a lifetime.

So far, we've had two negative comments (myself and Niles H) about the satisfaction of eating directly out of the tall Jetboil cup. The Flash appears to have the same tall shaped cup as the Personal Cooking System. There is also not much room in the tall cup for additional food to be added to the boiling water. I can't say whether the shape of the MSR Reactor pot easier to eat from or if it allows better room for additional food added to the water.

The Jetboil Group Camping System is $119 at REI. That's in the middle of the two other price points and I know for sure it's a pleasure to use. It doesn't pack quite as small as the others, but it only weighs 5 oz. more than the Personal Camping System and I'm able to pack soap, and utensils inside it, in addition to the canister and burner.

The Jetboil systems have a built-in igniter. I'm not opposed to carrying matches, but when it's windy or wet, you can't beat push button fire. Don't forget you can use any brand of isobutane in the threaded canisters. Coleman, MSR, and Jetboil all have different sizes available. A single 8 oz. canister may be more convenient than carrying two 3.5 oz Jetboil canisters.