+1 for dweller’s inflation-adjusted example. And it’s accurate in my case. In 1975 I got my first job and spent $700 for a new stereo: Marantz 2230, Advent speakers and AR turntable/cartridge. In 2015 I retired, claimed a former bedroom for my music room and used it as an excuse to put in new audio equipment: Magnapan .7, Rogue Sphinx amp, Pro-Ject TT, Marantz CDP, Musical Fidelity DAC and an Apple Airport Express streamer. Cost was about $4000, or just about the same adjusted price as the 1975 kit.