I much prefer a top quality semi-rigid gig bag to a hard case. If I was packing my bass in the back of a van along with the rest of the band's stuff a case would make more sense for me, but the bass is always packed and loaded by me, and today's bags protect very well, tend to be lighter, less bulky/easier to pack, with the conveniences of multiple accessible pockets and shoulder straps. I keep 1 TSA approved Fender plastic case for airline checking, but haven't done that for years. I have a headless Kiesel I travel with. I'm a hobbyist and that bass has been all over this crazy, flying communal rock with me...I just played at an old buddy's birthday in Greece.....it travels in a Kiesel semi rigid case that has been gate checked on many flights........often comes out a bit damp from the temp change/condensation, but so far so good.