Maybe there is a 1oz. "special occasion" type fragrance you would like to have, that a flacon or 4oz would be overkill?
For example, I like VIW, but it's something I would only wear very occassionally in the summer (nice party, wedding, etc). You are certainly much more a Creed expert then I, but maybe they have a fragrance you have been on the fence with for this reason?