You can NEVER have too many Cruisers, especially when you're saying that you would only have 4 vehicles - I've got 6 running around here and I haven't even been trying to collect any.......
At the age that we are talking, and the state that we are in, registration doesn't amount to squat. You can suspend insurance on 'em for part of the year if you have to - my 40 is suspended right now for "winter repairs" even though its likely to just sit in the barn till spring.