My '98 C3500 is registered commercial. I asked why since it was for my private use. I got no answer.
Because it has 8 lugs. I pay commercial fees on both of my C20's. One is 1965, the other is 1981. Neither is used to haul anything business related. Only personal use.
To the OP, Avoid commercial plates. It's okay to be different, but this state already takes enough of our money, no reason to willingly give it to them.