old vs. new , wich one is better?

Hi,
In the last year or two my impresion is that there are more and more people buying old audio amps, preamps, turntables,etc. When you ask them why, they say that is because some old products were build with such a quality that is impossible to be replicated today, not because the technology, but -for example- actual cost limitations and the way the comapnies are managed today (profitability as their main focus).
what I would like to read from you is if in your experience as critical listeners, in some cases the old and best (for their time) Sansuis,Pioneer, Mcintosh, Dynaco, or others, could be better than the actual amps, preamps, turntables, etc. and if you agree, what products in particular and why, what do you find in the old ones that is absent in the new ones.
Thanks for your comments, I think this could be interesting.