Honestly, a week in San Francisco with an expensive flight is going to be pricey and a hard sell even if the WWDC tickets are free. Apple has done a pretty goo

Honestly, a week in San Francisco with an expensive flight is going to be pricey and a hard sell even if the WWDC tickets are free. Apple has done a pretty good job keeping the price constant since 2010 (and before that there was just an early bird discount, which they got rid of once it started selling out early.)