It’s been major for me with RVing. I guess I could have used a gaming laptop but given the limited “table” space in an RV the handheld formfactor is a major advantage. That plus the minimal power requirements - I don’t need to factor it in to our off-grid time at all, while a 200W gaming laptop would definitely be noticable.
I also just prefer it for home. Sitting on the couch, in bed, whatever. I find it comfortable to play on.