...you order Tiger reflexively on the day pre-orders are announced, and then mark 29th April on the calendar with the words "Tiger arrives", adding more exclamation marks than are strictly becoming for a woman of your age.
...you find out that a new Apple Store is opening in your home town, and go out of your way to walk past the closed shop, just to look at it. You do this despite the fact that you generally detest shopping and shopping centres. You also realise that the opening night coincides with a party that you're going to, and you make elaborate but impractical plans to try to get in to the Apple Store when it opens (and perhaps get a free Apple T-shirt!), and yet still make it to the party.