I always take guitars in their cases, then,once on site or at destination, transfer them to gig-bags; it's quite surprising what you can fit in to a decent gig-bag----guitar-stand, picks,capo,strings,cutters,string cleaner,lightweight waterproof jacket,small umbrella, hip-flask, 2 or3 cans of cider, you know !!-- Essentials !! The thing is, you've always got your treasured box with you, so no need to fret ( forgive the pun ).