there're various external factors contributing to WTF (Wrist Time Frequency!), at least for me.
-I keep good portion of my pieces in bank safe. It's just difficult to get there at times and unless I go there every other day to switch watch, you'll still end up wearing one a lot more than the others...
-I go to the gym a few times a week during work so again, I'm confined to more rugged and water proof watches than fancy complicated piece on expensive alligator straps. So with your criteria, I should only have 2-3 SS basic watches + another 1 or 2 dress watch in my collection. The mere thought of that hurts!!!
Generally I would agree your approach should pretty much identify what you really like or not. There're certain pieces in my collection that sometimes I'm just reluctant to wear, or I would ONLY wear if I will have a chance during the day to switch. So for those, it makes sense to pass on and fortunately it's been happening a lot less these days...