As the proud owner of an iPhone and a MacBook, I honestly don't think I will personally need an iPad. But I've come up with a few excuses as to how we could use one in the store, so I may pre-order. 

Now, though, I may have a new rationale: it's what a Breguet fan would have done in the mid-19th Century:

http://www.crunchgear.com/2010/03/12/confession-i-pre-ordered-my-ipad-right-now-and-breguet-made-me-do-it/