I'm sure that each of you could nominate your 'end-game' rig, but a quick look at many of the sigs on Head-Fi tells me that such a thing doesn't really exist, at least not while folk keep coming back here.
I get the hobby/collector thing, but how many people (reviewers aside) wheel out 50kg+ floorstanders and the monoblock amps that drove them, just to experiment with new toys ? If anything, the prospect of messing with a combination that has taken years (and many thousands of dollars) to assemble seems to terrify many with high-end speaker rigs - its the reason companies like McIntosh keep making the 'same' amp.
I dont live in that rarified space, but thats the impression I've gleaned from various interviews with people who have spent a lifetime assembling the 'perfect' system. The Stax Mafia might be the closest thing in the Head-Fi world, but I doubt that anyone here is 'terrified' by the prospect of spending more money on new kit, even if it doesnt gel with their existing setup. Its an addiction, no question, but any talk of 'getting off the merry-go-round' always evokes cynicism on my part - happy to hear from those who can tell me otherwise. Photos of unicorns also welcome.