It was always a very tiring week, and plenty of times I just wanted to go back to the hotel to rest. Plus those chairs were a killer to my bad back. Looking back, I'm glad I always stuck it out.
Networking was a huge thing that I should have done more. 2007 only had Mac sessions, with a few mobile web sessions. Nearly every big name Mac shop was there, in full force. Most of those shops have had to send fewer people lately, but they are still represented. Plus tons of new companies now. You'll never know who you might end up meeting. They offer plenty of time and places to do that while at WWDC.
The labs are the #1 reason to go WWDC. You get to talk directly to the engineers in charge of the frameworks. Bring them your app, code, and any issues you are having. For some people this is worth the cost of admission alone.
If you are just going to sit in on some sessions, I'd stay at the house and save the money. If you are going to network, use the labs, plus do all the extras like Stump the Experts, Design Awards, etc then it's definitely worth going.
If you're familiar enough with making an app (as it seems that you are) then I would try your best to make a new app as the idea is to present an application that is about you — think of it as an 'app resumé'; done as creatively as possible, of course!
Last year, I made my app while studying for university finals that started a week after the submission deadline — it's not implausible ;)
You must also be enrolled part-time or full-time in a course of study, or be a member or alumni of one of the listed STEM organizations. [1]
-- Key word there is 'OR'
I'm only replying to this in order to help others; I think you should strongly reconsider your use of the word 'normal', especially when using it in a way that could be misconstrued as a comparison against minorities or other groups of people, i.e. excluding 'women, black and hispanic' from being 'normal'.
[1] - https://developer.apple.com/wwdc/scholarships/Scholarship-Gu...
Being lucky enough to go twice as a student and have the ticket (but not flights unfortunately) paid for, gave me access to a wealth of like-minded young people and events that provided me with insight and opportunity that I would not have otherwise been able to get.
Please give it a shot if you can, and are eligible.