Have you ever tried a pair of speakers and said this Is the last thing I will ever need.

Well there sure have been speakers that I would probably like more than what I have but to be honest I am very satisfied with my Ref 3a Decapo BEs with REL sub. After almost 4 years and plenty of tweeking and fine tuning they are sounding quite "right" in my space and right to me has always been the goal. When it is "right" boredom doesn't reveal it's ugly head so much. Of course the room is always the biggest determining factor with speaker choices IME. Much attention has been given to this and the efforts have realized significant improvements.

I have a vintage amp and a 6sn7 tube preamp that sing together all ready for a pair of Quad speakers, 57's or 63's, I wouldn't care. The only problem is I don't have another room to set up for that. The Quads and Soundlabs still provide the most natural, transparent and timbrally accurate sound I have heard. They can be profound in communicating a performance. Maybe in the main room at some point in the future. Other than those speakers I find the Decapos fabulous in my room and with my components, they are also superb communicators.

When I first heard the Andra Eggleston I said speaker for life....I still have them, they are good on piano. And more,then I started collecting monitor speakers....    I have the the following speakers I rotate them monthly...                                 Diapason adamantes, norh 9.0 modified, Technics Sb 700, Omega 3i, wharfadale 10.1 and 10.2, ElacB6. Pioneer sb 21 and sb22....

You know something Jayctoy, there is something about monitors that is really appealing, at least to me. They can really draw you in, probably the simplicity of design without the heroic efforts that can frequently distract. Often I sense that audio becomes too complicated in trying to achieve more than can be realized, overstating and under performing in the process. Your point about collecting monitors and rotating them says a lot, I hear you.

@jayctoy Why would you rotate, let alone so many? Do they differ in strengths/weaknesses that much? Surely something stands out as superior to your preferences, whatever they happen to be. Different strokes...cheers,
Spencer

@tubegroover  Funny, I used to own Quad ESL63USAs and now listen to Sound Lab A3s. The former were so limited in what they do well compared to the latter that I can't bare to see them mentioned together. The Quads were a one trick pony(i.e. midrange-centric small scale), but yes they do it great. The Sound Labs are transformative every day on countless recordings. 
If you ever get near Philly, come on over...cheers,
Spencer