I like you attitude about your 9 year bike. I have "reverted" back to my '82 Trek which was when Trek still handmade them in Wisconsin. I took it to a bike show for an event I was participating in, and there were looks of envy.
I haven't upgraded it because the bike can still "out perform" me. It isn't the weak link, I am. Having said that, as much as I love it, I just can't spend the hours in the saddle anymore. I need to move to a recumbent for any long rides.
By the way. From north of Boston originally. Have a slice of pizzar for me, and cheer on the Sox!