Cost VS Benefit
If I lived in a state where open carry and car carry is an option without a permit, like in Louisiana, I can understand folks not wanting to get a permit. It would be best then to openly carry on a belt when out of your car and you are fine down there. I know some states, like Arizona, are the same thing. I don't have a lot of sympathy for folks in states that have great open carry laws (AZ, Louisiana, Colorado) concealing illegally without a permit. They can't claim they have the 'right' to conceal when they can openly carry for free.
I see a little bit of folks' argument who live in states like Tennessee (where I live) who must have a permit to carry whether open or concealed...basically to carry in public or in the car loaded that it is an infringement. Yes, in an ideal word open carry would be free in TN (like Louisiana/AZ) and conceal would be free. The problem is that dealing with a misdemeanor weapons charge in TN is going to cost more than the permit from the state. Lawyer, court time, trying to cut a deal with the prosecutor to get the charges dropped, paying court costs, fine. Yeah you won't go to jail or prison here with a clean record over carrying a handgun without a permit generally since it is a misdemeanor...but it will be a hassle.......think of it as dealing with a DWI/DUI....BIG HASSLE.