Do y'all think I'd be nuts to drive from Richmond, VA down to Myrtle Beach, SC and back for a 4-day trip?

I wanted to take the plane to Charleston then rent a car to drive up, but cost ($350 for the airfare alone) and time-wise (must connect in CLT or ATL), it's a struggle for that to make sense. Amtrak isn't a terrible idea except there are limited rental car options where I'd get off, and it's likely slower than driving. But I dunno if I can stand driving 7 hours alone each way, it's kind of exhausting. Mentally I'm not feelin' up to it and I don't want more traffic violations.

I'm struggling with spring break plans, y'all probably can tell. Anyone wanna offer their $0,02?