This is the final verdict: Google Analytics is freakin' sweet! I was able to view my first report today and I learned a few interesting things.
1) I actually had a referral from this site apartmenttherapy.com.
2) 3 people found me through Google, including, I suspect, the person that purchased my vintage 1950s baby book.
3) Most of the my recent hits came from within the United States.
4) And finally, people really do read your feedback.
My next little experiment is to post/relist a few items and see what kind of activity that generates.