Most of my trail cooking is just boiling water, and (especially with the ETA pot) the Primus is very, very good at that. 1 liter to a full rolling boil in just under 2:30.

I absolutely would not buy a whole new stove just to save one ounce. If I saw a real benefit to it, sure, but an ounce is not worth $40+ to me.

I have contemplated making an alcohol stove from a red bull can for backup and simmering, though.