The phrase "....the suspension of disbelief..." comes to mind when trying to describe a systems' abilities, or otherwise. Does your system enable you to enter the realm of music and forget about 'hifi'? If so, then isn't that something worth the time, trouble and expense?
How this is achieved will be different for each of us as we all have differing expectations and tastes but I find it less than helpful when equipment is described in terms of its' bass or mid or whatever other hi-fi parameter you care to name. Surely it matters not how deep the bass or crystalline the highs if the sound has no musical coherence or merit, if the system is incapable of reproducing the nuances of performance that go to making a believable musical event then all the tonal accuracy, harmonic richness, sound staging abilities are just a waste of time.
The systems that draw you in and surprise and delight will these days, I believe, be those that manage to combine the best attributes of what in the past were often the opposing qualities of performance above all else v. sonic purity above all else.
Regards