Now is the era of vintage receivers Pioneer SX xx80, sansui G 7000 or higher.
Folks realized that they sound super good and very often better than current hi-end units. In addition there's a HUGE advantage of having free service manuals with schematics over any current unit that doesn't have it. So to make long story short -- vintage receivers and amps are forever and other hi-end is temporary. Who's going to buy $5...10k 10...20 years old Lamm monoblocks? Only fools, because the smart one would look for serviceable unit.
Folks realized that they sound super good and very often better than current hi-end units. In addition there's a HUGE advantage of having free service manuals with schematics over any current unit that doesn't have it. So to make long story short -- vintage receivers and amps are forever and other hi-end is temporary. Who's going to buy $5...10k 10...20 years old Lamm monoblocks? Only fools, because the smart one would look for serviceable unit.