Check the wine prices online. GO has quite a selection of bargain priced wines in stock, but beware. The bottles will be marked with the actual retail price, in GO, as well as the "usual retail" price of the bottle. I have found bottles that were said to "retail" for $14.99, marked down to 6.99 in GO, but actually selling for $3.99 in BevMo. I have begun to go to GO, write down the variety, brand, and vintage of a particular wine, then go home and google it. I do that with several of the wines that I am interested in. This gives me actual retail prices, as well as a review of the quality of the wine. I then go back to the store, and put together a case to buy. This is a bit time consuming, but serves me well to distinguish the bargains from the 'disasters'.
I have expressed my concern with my local store about the discrepancies in "retail price" on wine, but my email went unanswered.