I live in a hot area ( Middle East ), so cold temperatures are not an issue except maybe a few winter nights. Besides I may need it in ( mild environments ), that means indoors, where perhaps electricty is not available or not convenient.

It just adds more options , especially in small package liek a GHB or BOB.

By the way, I have looked for yellow HEET (methyl alcohol) in our market but couldn't find it. I will keep looking though because I remember seeing red and yellow gas additive fluids in some gas stations.

I have seen methyl alcohol (yellow HEET) in a number of You-tube videos and it seems another good option for some cases. But the good thing about refillable butane stove is to put the EMPTY stove in the luggage when travelling and butane refills are available in most stores in any city.