In contrast, in the last 10 years or so I have been constantly changing bikes: A case of so many bikes, so little time!
I guess that is where we differ, because I will have multiple bikes in ownership but they will all be different (not too many at present, as it happens!). As a whim, I may aim to own a single, twin (V preferably), triple (we all know which manufacturer) and an in-line 4 (or V four?) all at the same time!!
I've considered getting a new headlight for the TT600R because it is super-motoed at present - I have the off-road wheels to fit as well sometime but that will be later when "that" engine problem is sorted.