you mean a certain sector of the population has gone mad.....£1000 for a 40-odd year old amp is bonkers. Even my old Pioneer SA-706 are selling for between £400-£500 for good ones. I loved it but I would be very nervous of buying a amp that old, especially with over inflated prices.
The world has gone mad.
have you seen the prices they are asking for some knackered old turntables??