I don't get around much, but I always come home to a very satisfying system. The system includes room treatments and extras to turn my man cave into an audio optimized listening room/office. Right now I have about $3500 invested in a very simple CD only system, but would like to spend a bit more on room correction/DAC and internet audio streaming.
Part of the satisfication is putting together a system that does a decent job for any kind of music, but is especially good at the types of genres and audiophile aspects that really push your buttons. For me, a really good system also has to follow your basic audio tenants. For me that includes having a proper room, having one amplification channel per driver, having good parts (especially drivers), system synergy, and not writing off deep bass.
I've found that most uber-expensive systems (just like the stuff at the big boxes) are designed to impress and make great eye candy, not convey the heart and soul of the music. They just do it better. IME they were developed for the hyper rich who for the most part don't know music/audio very well.
After 30+ years with audio, I'm still optimistic but not very open minded. It only takes seconds to see or hear most systems to scratch them (and their creators) off my list when they don't follow my audio tenants or have an artificial "hi-fi" sound.