It's impossible to ignore how aesthetically amateurish the really old PSA slabs look compared to the newer ones...
1970ryanslabcomp.jpg
No pizzazz, just a label seemingly typed on an extremely old Underwood. Of course, the only thing that matters is how nice the card looks, but I know if I was selling an 'old label' card, the offers would be much lower than what they would be if it was encased with a 'new' label.