Several things are nice about this stove:
1. You can burn whatever is cheapest. The CG 450g canisters are $7.00 in my area whereas threaded ones are $9.00.
2. There is no thread wear (because there aren't any threads). Stove threads do wear out. The threads on a conventional stove are typically brass. The threads on a canister are typically steel. Steel wins.
3. You can use any gas canister that has a collar and a compatible female valve. Yes, the SuperFly/SuperGnat was meant to handle Camping Gaz and standard threaded canisters, but there's nothing stopping one from trying other canisters. I've hooked up my SuperFly to a small canister intended for a small butane pocket blow torch. Be careful though. If a small canister tips over, you could be in a bad way. Likewise, if you hook up a SuperFly/SuperGnat to a canister that has some kind of feed tube inside, you could feed liquid fuel instead of gas to the burner. Uh, that would be bad. Still, if one were careful, there are a lot of potential non-standard fuel sources out there.
HJ