I'm into wine, and while I keep some bottles that need to age for longer before they're good, some I got as a gift and I'm waiting for a special occasion and the right people to open them and drink them with, and some I intend to gift later, I don't understand people who have hundreds and hundreds of bottles either.

At some point it becomes about performing class and showing off. Unless you're a full time somm at a restaurant I'm sure you're not going to remember every label and vintage in that cellar, and know what they're good for, or taste like.