my collection philosophy is to try not to buy any more.
a significant amount of the watches i own are not ones i purchased myself, but watches that originally belonged to my father, my brother and i think one of them was my great grandfathers watch.
i don't want to buy any more because i don't need any more, i see something that i like, i buy it, and i end up not wearing it after a while, then i see something new that i like, and the cycle continues.