I think I'm done sometimes...but yup, as soon as something is coming back from the servicing or a new purchase the wait gets me excited again. Sometimes even just ordering an accessory for the watch (a camera filter, photo studio, whatever) will get my excitement renewed.
As to #1, I find reading the posts here on RWG, the reviews I get fuelled by other people's excitement and start getting intrigued by things I never thought I would look at 6 months ago.