vintage versus modern speakers

Since I have had so many excellent insights and answers to my question, here is the second chapter of my "free" education: are great vintage speakers (Infiniti, JBL,Sansui, Sony, etc..) from the seventies better sounding than what is available now? the X factor in that equation is the cost, since my speaker budget is only 1500$ for two speakers.

Ladies and Gentlemen, your advice will be read and taken into consideration.
Thank you.