It does raise the question of when such "collecting" can be considered a legitimate problem and the lack of proportionality between perceived benefits of another and legitimate drawbacks associated with it.
I tend to be guilty of prioritising gear over the drawbacks its acquisition will bring and there's no getting around the fact that bikes are a bloody pain to store. Currently I have two in the shed, two in the dining room, one at the flat, one round a mate's house.. objectively I'd rather have far fewer but it's certainly true to an extent that one bike can't do everything.
I’ve thinned my collection down from 15 to just 4. of which 3 I ride regularly, my Brompton gets the most use, I ride it most days.