Buying iphone 6 in-store or online?

So iim thinking of buying the new iPhone 6 unlocked, but almost every store i've been to has been out of stock, they tell me to reserve instead but when I go online, it's always unavailable. So I was wondering why everyone else kinda waits out till it's available rather than just order it online through the apple store and get it shipped to them. Are there more benefits from buying it in-store?

The iPhone 6 is currently not sold unlocked in the US, should be before the end of the month. Guess some rather chance it & hope they could get it in store. No there are no benefits off vs online.