Thanks for the replies. I've been each event since 1998. Except when I was in the UK and was lucky enough to be at Farnborough in 2006.
I wanted to be a pilot as a kid but unfortunately I wouldn't pass a commercial medical due to hearing. Aviation is a massive passion for me nonetheless and I've enjoyed a few lessons in a Cessna 172 and had a ride in a sports plane too!
For the most part I love aviation vicariously through travel and air shows