Congratulations on your 30 year "house-a-versary"!
I think it is just wonderful. I have lived in my present house for eleven years, the longest ever, and was just thinking yesterday that lately I have been settling in a lot more than I did during the first ten years. I love that feeling and unless my neighborhood changes for the worse, I may never move. I can't even imagine how great it must feel to live in the same house for 30 years.