Sorry to be the nay sayer but gig bags make me nervous. They just do not really protect the guitar. I was at a open mic several years ago and had brought my guitar in a gig bag. The host told me a story. He took his guitar in a gig bag, to a show. While getting out of his car he was distracted and banged the case into the door frame. Snapped the neck on a Martin D18. In a hard case nothing would have happened. I gave up the gig bag after hearing the story. Plus, you are still lugging around the guitar, gig bag or hard case. The difference is really minimal.
Having said that. If you do opt for a gig bag I'd look at a hybrid case. Body Glove makes a good one. Has a structure somewhat like a hard case, but with the pockets, shoulder straps, soft exterior of a gig bag.
"The music business is a cruel and shallow money trench, a long plastic
hallway where thieves and pimps run free, and good men die like dogs.
There's also a negative side."
--Hunter S. Thompson
Guitars: Dean Sweet Wood 00R, Martin D2R, Guild D60, Guild D35NT, Morgan Monroe M30, OS baritone Uke