For me 500 USD of Roon lifetime membership was the most worthy investment amount all my audio investment.
However, for some of my friends It's like killing them to let them buy a "Software" for that money but they would throw 2k for power cable in a heartbeat, interesting.

HT: Audiocom LX800CE, MP-60,HOLO MAY*2 Analogue speaker(LRC), DSP5200SL (side), DSP7200SE (rear),AntimodeX4,JTR Cap4000ULF*2,Christie HD8C,GIK Bass Traps.