BG, you won’t find me complaining that SD got a few more development lined up. I wouldn’t be able to afford a place 5 minutes from work if SD went the way of SF so early on. But now that I’m an owner, I would love SD to go the way of SF :-).
As for MM, I’m all for greatly increase density. IMHO, it would only increase the desirability of the surrounding SFR. More density means more restaurants, more walkability, more services, more jobs, etc. All of those things are a plus in my book. Also, if Sorrento Valley/UTC continue to add more high rises and adding more jobs, I’m pretty sure more and more people will want to live closer to work and not have to deal with the crazy traffic. So, while you see it as a hassle factor, I see it as a major positive. Kind of like owning a SFR in Hillcrest, where there are a lot on high density areas. I view owning a SFR is a big positive, since you get both the advantage of density while still have your own space. So, I say, bring on the density. The more the merrier.