As you pursue your search, you might want to find out how many minutes of cooking time those "cheap butane canisters" produce with your stove. My guess is that the butane/propane (or isopropane) canisters might let you cook longer at the same temperature setting. So, if it takes 3 butane canisters to give you the same cooking time, and they're $3 dollars each, it would actually be cheaper to use an isopro canister that costs $6.

One reason that those stoves are no longer available is that technology came up with something better and made them - and the butane canisters they use - obsolete for backpacking purposes.

You can get good canister stoves, like the Pocketrocket or Snow Peak Gigapower stoves, for about $50, and they last, for backpacking purposes, "forever" - or at least long enough that your stove cost is about $2 a year.