They make all sense given cheap energy. For example, Iceland grows most of its tomato consumption locally around the year despite a lack of sun in seasons like this one (currently 4-ish hours of not-that-strong daylight), doing that under artificial light in greenhouses, getting both heat and electricity from cheap geothermal power sources.

So when at some point in future we manage to get cheap renewable replacements to fossil fuels, all of this becomes very relevant.