Great question. I have had three rather large systems, and have sold out the entire system and started over. For me, building a system is more than half of the fun. Learning what matches with what, learning about all of the product out there, it is all about fun!
Complete McIntosh (MX-132, MC-352, MC-7205, MVP-841, MLD-7020, and the Display light) with 2 Energy Veritas 2.8's, and 3 Veritas 1.8s and a single Velodyne FSR-18, all with a 42 Plasma. Sold the package to ONE person in New York!
Proceed PAV/PDSD, with a trio of Rowland Model 7 monoblocks, and a Citation 7.1, all running a B&W Nautilus system, 802's, HTM-1, and the 805s as surrounds with a pair of Velodyne HGS-18s.
All California Audio Labs, CL-2500 series, with a complete Aerial Acoustics speaker system (10T, CC5, SR-3, and a pair of SW-12s) all VERY close to heading out.
This time, it will be replaced with a Lexicon DC-1 and a Chiro C-500 5 channel amp with a pair of Hales Revelation Ones, Center, and an Energy MicroStar 12.1 or a pair of Janis W-1s. A little less expensive.....but will rebuild, absolutely.
Are you considering an upgrade?