A lot of it is a cultural stigma thing from the time. Back then the idea was 4-door cars (and station wagons) were boring transportation for families and 2-door cars were sporty for single people, kinda like SUVs/crossovers vs sport sedans today. I'm only 33 so to me it's silly though because they were the same dang car just with more doors and a slightly different roofline. I think 2-doors look a little better but with the price difference these days I wouldn't pass up a clean 4-door model or even a wagon.