...back in my single days in my late 20s/early 30s I used to buy and sell a lot, but it’s because I was buying watches that I couldn’t afford to truly keep, and I wanted to experience as many as possible. Basically I had a certain amount of dollars in my savings that I would think of as my watch ‘play’ fund, but I always knew that eventually I’d need to use that money when ‘real life’ came along. E.g I had an FP Journe for a while, an AP Royal Oak Chrono, and a few others, but cumulatively that was an amount that I knew I’d one day put towards a downpayment on a house, kids college fund etc...in my mid 30s I got married, and we had twins a couple of years back, so my collection is a lot more stable and modest, because it consists of watches of a value that I can truly afford to keep, and not just afford to buy. I can spend $5-10k on a watch and just think of it as a watch to wear, but beyond that price level, I start thinking of them as assets and part of my ‘portfolio’, if you will, and I’m at a point in life where there will always be something more important to spend money on than a watch. My collection is fairly static for now, but I expect from this point forward that I’ll just buy and keep when I do periodically add to the collection now, as I’ll only be buying watches that I won’t be tempted to sell.