it is all fashion, things come into fashion then they go out.
then they come back in.
there was an old Mad magazine that had this with cars:
1. first the cars were all chrome with a little bit of glass
2. then the glass got bigger and bigger
3. eventually the cars were all glass with a little bit of chrome
4. then a 'futuristic' car came along that was all chrome with only a little bit of glass
then they come back in.
there was an old Mad magazine that had this with cars: