Costco has been my "go to" place for wine for many years. They usually have tasting notes (very important when buying a new wine), and a good quantity of wine for each type.
I'm a "frugal" wine drinker. I bought a wine cellar (around 220 bottle capacity - a beautiful piece of furniture, as well as being functional) and a rechargable wine preservative unit (my "baby aqualung") a couple of decades ago, and I used them for wine "hunting". I have bought an enormous number of bottles of excellent wine from all over the world, and rarely paid more than $11 dollars a bottle.
Here's how I do it. FIrst, I have to have space in the wine cabinet. Then I go and read the tasting notes of the various wine for sale. I never look at the brands, as wine varies from vintage to vintage even at the same vineyard. Then I look to see if the price is acceptable. I then make a list of the wines that meet my price and taste preferences. Then I buy a single bottle of the wine, as a sample. If more than one wine meets the parameters, (which is often the case) I then buy a bottle of each one that meets the requirements, take them home, and have a "taste off". Then (the next day), I go buy a case of the winner(s) and stuff them into wine cellars. Voila! Another few months of quality wine. Plus I get lots of variety - Cabs, Pinot Noir, Merlot, Various blends, Reislings, ect.; as I always swap bottles around as I drink down the supply. I keep a "ready rack" of 6 red wine bottles at room temperature, and each bottle is usually a different wine. . . (I keep a few whites in the fridge, for ready use when I have fish. . .)
I drink a glass of wine a day. . .