Of course, that's a joke! I have a modest system myself. Much less expensive than yours overall, and I certainly hear differences in digital front ends (cd players, DAC/Transport, etc.) But they aren't huge revelations. It's typically more like an improvement in the perceived soundstage width/height/depth or the ability to better follow a bass line, etc. I don't necessarily hear as big a difference with amps, but my speakers are easy to drive and don't require much from the amp. I hear an even smaller difference with cables.
You might be lucky to not hear every minute change in detail. You can just stop buying stuff and enjoy listening to your system.
Enjoy,
TIC