Some Vintage pieces are well worth their reputation.
But i bought mine at relatively low price...
Old gear need repairment or are at risk of...
Then the market of used gear can be overpricing them for sure...
And we can buy very cheap and very good gear now (Chinese among other things) then most vintage pieces may be not a so much good deal...
But some stay because of versatility of the design which exist no more and because of the high quality of some mythical vintage (Sansui alpha for me)
I installed VU meter on my wife head and she look beautiful but it does not improved the sound ...
All VU meter i bought were beautiful and useless ...