This is an interesting topic and I have sometimes asked myself when it's enough. I've always been crazy of watches, I noticed that I wanted to buy every watch in the beginning. But I found out that I only bought them to keep most of them in the box.
Over the years, I started to appreciate watches in particular vintage watches.
I am now a real vintage enthusiast and can appreciate the watches of modders such as Kilowattore and tripdog.
I stick to 10/15 watches and if I want to buy another beautiful piece, then another one has to go.
I rather wear a watch, witch I really like, for a week, than change it everyday
But the most important thing is that we all enjoy our hobby. Collector or not