After the 2007 fires, my wife and I went to Denver to check things out in wintertime. It was snowing one day, sunny and warm ( i was in a tshirt) the next. I drove up to loveland during a blizzard the next day and boarded in powder all day.
We really liked Denver and came away with a few places we considered a place to move the family to. With a massive tech center, it would be suitable for me for work or as a jump point for consultancy.
The market changed for the better (we were renters at the time) and san diego became more affordable. My job changed for the better also.
If we were ever to move from SD, that is the only place we both want to move to. We love it there, the only thing missing is the ocean.