They are reasonably desireable on the used market, but are still found turning up pretty cheap. The NAD 7020 or 3020 Integrated amps.
They are the same, except that the 7020 has an AM/FM tuner in it. Otherwise, same amp, same phono stage, etc.
Anyway, the phono stage is quite high quality, and while I don't have a wonderful turntable, my cartidge is a reasonably fresh Grado black, which is at the bottom end of 'nice' cartidges. Anyway, the phono stage in my NAD 7020 is very nice, and is quite surprising for being a 20 year old integrated receiver. Also, the amp in it, while its only 20wpc, is nice too, and still puts out a very clean, warm sound.
Also, the headphone stage is pretty high quality too. You probably already have something better than it, but if you didn't already have a headphone amp, the NAD would be a step up from your usual afterthought headphone jack.
Anyway, something to think about, if you have the desire to go retro.