You are living out of a suitcase. Eventually, all the suitcases will be disorganized and messy and finding even the toothbrush will be a chore. You risk staying at places you won't like. Let's face it, even the best travel guides are at the mercy of time and the descriptions of others. Worse, the beach may be on some mosquito-infested pond NEAR the real body of water.
Words can lie.
You're at greater risk of theft with all you belongings in the car. Your vehicle is crowded and uncomfortable. You probably can't find what you need enroute because you forgot to pack it in some easily accessible place when you left last night's lodging facility. And it's often impossible to do something unless you have the cooperation of everyone else on the trip. Stay in Harrison and take day trips from your centrally-located lodging.