You two have the OSH spirit!
Now, if you volunteer a certain number of hours you get to camp free and get in free all week.
Look up EAA Oshkosh volunteers for more details. It is a very rewarding thing to do. I'm a roving volunteer filling in here and there. They are constantly looking for volunteers. I've been on the flight line, driving shuttles, working in the emergency aircraft repair facility, delivering water, welding and fabricating parts. Might even give a few seminars next year and VFR cross country. I have a ball. Get involved, you will too.
Several of my buddies get to OSH 2 weeks before it opens. They actually get in line and wait for the opening day when you can stake out your camping areas. They get there the night before and party all night waiting for the gates to open. No I am not kidding.
Ive been going to Airventure since Rockford, IL was where they held it back in the 60s. I was 12 or so.
. That makes me old!