It's not hard putting together a high-end system that throws much more "detail" in your face. But getting it to also sound musically coherent and broadly enjoyable can sometimes be a challenge. If you're unsatisfied, especially if you find too many recordings unenjoyable, maybe it's time to be honest with what you REALLY think of it. A poorly balanced system might sound "great" on simplistic beautifully-recorded audiophile fare, but breaks down on anything this side of Krall.
You did mention tape though, and tape is one of those rare things that just seems to always get better as you go more high end.
Then again one could just have gear fever, and that will preclude any lasting satisfaction until you settle down. Though the journey itself could be fruitful towards learning what one likes.