I suppose I am lucky. My wife bought me a PK Custom and a Meucci 84-4 within the last year. Certainly don't need to hide cues from her. I have around 13 or 14. I think I will end up with about 25 but I guess that could change. I have a small list in my head I would like to obtain.
If I could afford it I would collect muscle cars and motorcycles. I can't but I can buy a cue here and there. Also, muscle cars, boats, bikes, etc. all cost you a lot of money after the purchase, cues don't really do that unless being refinished.