@lalitk
The most expensive thing I did was to sell my Raysonic 128, which I used the volume control direct into my amps with a matched set of Russian tubes. After a couple years, I replaced it with the Raysonic 228. Now, the 228 was an amazing 2 box beauty, and a big improvement (MSRP $4800) but it started skipping right at the time Raysonic was folding its tent
My player for the last 4 years is a Oppo 105, but about 2 years ago I upgraded the power supply to one I bought on ebay, plus a Rhodium IEC with pure silver tail conection to the power supply and a silver jumper to bypass the 110/220 switch. Tremendous improvement. There's one for sale that has EVS mods also