I've always loved the symphony. One of my favourite recent memories of the symphony is having my mom surprise me with some cheap tickets we got. We ended up being seated in the choir section, on the other side of the orchestra. It was actually kind of wonderful to (a) be able to see up close and from about one story up, and ( be able to actually watch the conducter, and not just the back of his head, and © not to have to sing (I did used to be in a choir). Another was to see Andre Watts play Saint-Saens' 2nd Piano Concerto -- the first time I heard it, and it has since become one of my favourite pieces, and his interpretation is my favourite. For free (won a pair of tickets from the company I worked for at the time).
I still have a fantasy of seeing Hilary Hahn live, as she's my favourite living violinist, and she's relatively local here, so apparently plays often (and she's easy on the eyes as well -- a bit too young for me, but hey...it's just a fantasy).