In about a decade of collecting it strikes me that people tend to approach this hobby in three different ways when it comes to acquisitions, they either fixate on a grail and focus on acquiring it, or they maintain a list of watches they want to own someday and they acquire as the opportunity to acquire something on the list presents itself, or they see a watch somewhere and think gotta have it and they buy it.

Which way describes your watch acquisition approach and why do you use the approach you use?