If you can't afford $1,600, then you're not someone that Apple needs at this event. It'll cost at least an ADDITIONAL $1,600 for airfare and hotel. Plus, you must be a REGISTERED developer (an additional $99) to activate the WWDC ticket.
$1600 for the WWDC ticket + $650 for a hotel (maybe more, maybe less, but that's what I'm paying for 8 days) + $400 for airfare from the east coast + free developer account = $2650, not $3200.
Plus you can't count the $99 dev account fee 'cause that isn't purchased FOR WWDC. That's like saying it'll cost $45,000 to drive the kids to the mall because you had to buy a car at some point.