Yeah, I too believe that this is a cycle that each one of us WIS goes through. I started a watch blog in 2012 when I started to pick up more pieces; and a while back, I realised that I hardly wear some of these pieces (ballooned to some 30 pieces comprising mainly of mid-range pieces e.g. DJ, PO, BR01, BB, etc) and started to consolidate my collection.
With some tough discipline and constant nagging from my better half, I have managed to restructure my collection to 1-2 pieces of each 5 main genres that I have in mind e.g. Vintage, Dress, Diver, Aviation, and Sports. As new pieces appear that intrigue my interests, I would consider if it was worth flipping another piece off for the slot in the winder (constantly remind oneself to stop adding new winders) and if yes, then I would pull the trigger and start flipping off the piece that I had in mind.
So far, I have managed to stick to my guns and keep the collection in check. Instead of quantity, I now focus on pieces that really speak to me. If I got a new piece but it fails to sing to me, I'll just flip it off for the slot space rather than think of keeping it for a longer while to ensure that the depreciation was worth it. And the best thing was, I found that the controlled mix ensured that the watches did actually get wrist rotation and I derived satisfaction from wearing them