Replying to Ski bags for local skiing?

Hi all, today marks my first full season skiing. I picked up skis and boots for myself and my girlfriend as we both have been going a lot this season and plan to continue. I definitely need to get boot bags as carrying everything from the car to the lodge was a bit rough yesterday. As I'm looking around for what is out there I've also seen ski bags that look convenient, but I don't think I've seen too many people actually using them for local skiing and I'm wondering why people don't seem to sue them other than when traveling? Carrying "local" isn't overly difficult but with long hikes it would seem easier to just have an over the shoulder bag.