Like AN I don’t have a dog in this fight, but I do kind of disagree with flyer in that compared to L.A and most of OC, SD does have quite a bit of buildable land left IMO.
It just needs to be re-zoned in a lot of cases (like the 20 acre minimum in a lot of North county rural areas).
Anyway I would probably not want it in my back yard either, kind of starts to turn your nice suburb into more of a big city type of place.
I think New-port beach kind of had it right, Put High end Hotels next to your dense shopping and biz buildings if your going to have them.