I lived in SD for a year .. MEH.
Yes, the weather was nice. Ocean is still too cold to go in without a wet suit for much of the year, and the people were all pretty much selfish, self indulgent liberals who live there because it makes them fell superior for having chosen such a wonderful place. And they cared more about their cars than they did their kids. Traffic was always awful.
Yeah, its fun to visit, but no, I wouldn't live there on purpose again.