Grocery Shopping

So...here is an issue that has been confounding me and I hope to either get input from readers or I may have to resort to my own investigation. Or Both. I shop at Walmart for the prices and try to limit the processed food I buy, but my wife and daughter are still insisting on some items so I have to buy them to keep from having a revolt. I do get some fruits and vegetables from there, but they don't always have the best selections. I have noticed the Organics have increased. Then there is the meat. I will not buy any meat from Walmart because I know they are getting it from the mass production corporations. They question I have is what are the differences between the market down the road that butchers their own meat, Marv's Meats, which is a very good (popular) butcher, and the stuff I get at Arbor Farms. I know Arbor Farms carries the grass fed meats and they also have great produce, but where do the other two fall in? I am under the impression that Marv's is the next best thing and local market is almost as bad as Walmart, Meijer and Kroger, but is this correct?