Strange how the laws vary so much. I have to agree with arminnie that I tend to drink/buy way less here in New Orleans since it is so available. We also have mom/pop liquor stores here along with being able to buy alcohol of any variety in the grocery stores, gas stations, and drive thrus (you can't put the straw in it till you get out the car or it becomes an open container). The mom and pops survive because they offer something to their customers, either in exotic brands, customer service, sometimes better prices.
Neither my husband and I drink that often but when his family tried to convince us to relocate with them to Texas my husband told them no, he wasn't moving somewhere that he couldn't get a beer when he wanted one. The day after Katrina we drove to Keller TX with three young kids on their second full day in a car of three days and two sleepless nights of worry and all we wanted was a cold beer and some sleep. No can do, a dry county and my bil just moved in their new house a week ago and hadn't stocked the fridge up yet. Now when we go visit we bring our "sin" cabinet with us (if you had to endure them you would totally get it) but of all the reasons not to move to Texas (like my husband's job and retirement being tied to Louisiana) he chose he couldn't have a beer when he most wanted one. I can't remember the last beer he had.
So all that to say, I don't see the problem with beer or wine being sold in a grocery store.