Maybe we are lucky here. It's not that the snob grocers are going to rival any of the good beer stores around here; I don't want to cast them as beer paradise. But they do a reasonably good job of carrying at least some interesting and diverse things. I just went to Bristol Farms today (to buy an organic chicken, another example of something not easily found at the normal Ralph's or Von's, and something that I would not argue whose demand is diminished because you can find chicken everywhere), and there were beers like Chimay, Duvel, Bear Republic, Stone, AleSmith, a smaller San Diego brewery whose name escapes me, Full Sail, Karl Strauss, Shipyard, Lagunitas, etc. etc. It's not nearly the selection I could get at the Wine Country less than 5 minutes down the street, but it doesn't suck, either.
That actually doesn't sound all that different from what I've seen in SoCal. We get BevMo too, which is offensive in its inoffensiveness, as well its ability to have 10 rows of beer, and next to zero unique or interesting bottles in all of those aisles. The primary source here for good bottle beer are stores that make their name in wine, who devote attention to beer and treat it pretty well, too.
But, that said, that's the way it's been everywhere I've lived. Best beer selection in Minneapolis? Surdyk's, which is known primarily for wine. In Indy? Khan's Fine Wines. Chicago? Sam's Wine & Spirits, and Binny's, which is also a store known largely for wine (and probably for whisk(e)y before beer). SoCal? At least for the parts of town I've been around, it's again wine stores: Hi-Times Wine, the Wine Country, Morry's of Naples (which is losing beer shelf space in favor of more wine, which is already the lion's share of their business).
In fact, outside of Pennsylvania (and thanks to their quirky beer laws), I can't think of any store that is primarily a beer store, anywhere. At least in the States. Maybe it is different in Oregon and Colorado. (Oh, duh, Belmont Station in Portland. There's a successful beer-focused store.)
Now that wouldn't surprise me at all. Sounds about right for the Bay Area. And the wine emphasis seems even more logical up there, what with Napa and Sonoma just up the street.
-Steve