I think the bushbuddy is an interesting alternative, but only if you practice with it, and only in those areas that have fuel available, and are not wet for a great deal of the time. Such a device is useless above the snow-line, in the desert, or in climates like the almost always wet PacNW. Dunno if it's worth much on the prairies, either. Point is, before you buy, see if there is sufficient fuel in your AO to make buying this thing worthwhile, and stash enough to get you through a rain-spell.
One thing should not be overlooked. If you are more or less constantly searching for fuel supplies, your attention will be focussed on such. It might be that your attention should go elsewhere, perhaps to navigation, perhaps to situational awareness.
It's a neat item for some folks, but it has its' own requirements which might be contra-indicated, depending on your individual situation.