That's a great compliment to your bike, as well as a nice story. My LBS in my town is also a huge Trek dealer. They're used to me coming in to get stuff.

On a slightly different but related note, I was out yesterday at the gym, and as I walked to the door I noted a ratty looking tall bike. I had to go back to see what it was because it was obviously vintage. Turns out it was a Raleigh International with drillium cranks, Zeus brake levers, and Campy down tube shifters & front/rear derailleurs. It was still there when I left so I left a note on it complimenting their wonderful bike. Signed it, "From another vintage bike nerd". So, what you say about bikes going forever is true.