Now that so many people in airports can be expected to have and use laptops, and airports obviously seem prepared to respond to this (witness the free or for-sale Wifi in so many airports), when will the same shift happen with respect to the power outlets needed for those of us who wish to use our computers during a long airport stay and still have it working on the flight?

I've spent the past 20 minutes prowling around the airport looking for a power outlet-- there are a few scattered here and there (frequently not near the seats one might want to sit in to use one) but they're all taken,and there are now a few people circling around me and the outlet I found hidden behind a chair, clearly eager for me to stop using it so they can pounce.

So why isn't it worth it to either add a bunch more outlets, or to at least start charging for, and therefore rationing, the ones they have? Of course, the smart reader will just respond by asking me why I don't fly with a plug-splitting extension cord.