I once saw a Walmart in another state with a live lobster aquarium. My local friends almost didn't believe me. (I live in California)
If you want to see a really nice WalMart, then visit store 100, in Bentonville Arkansas. Curiously, this store is across the street from one of the main home office buildings.
Snark aside, the amount of central control tends to cause some unexpected kinds of 'drift' across the various stores. That central control, combined with absolutely amazing, state of the art technology in the late 90s and early 2000s led to much of WalMart's success. I heard from a lot of managers back then that sang high praise for the big computer system in Bentonville. Indeed, in late August 2005, the normal things arriving at the stores along the gulf coast disappeared in lieu of batteries, water, and other such supplies. A store manager told me, a few months later, that he knew shit was getting real when the big computer in Bentonville stopped sending regular stuff.
Unfortunately, that technology has not kept up, and actually grew in many non-useful ways to become the over-bearing beast that it is now.
So the whole concept of 'store of the community' was and is a thing. But in the past, it was a good thing. Now, not so much.
And yes, the ever spiraling expectations put on store managers to keep their comp (1 up, quarter after quarter, for decades, could only end up as we see it now. Serious understaffing, and other related problems.
1) 'comp' means 'comparable sales': http://www.investopedia.com/terms/c/comparable-store-sales.a...
I think the best mix between prices and not being over-congested and dirty are the warehouse stores like Sam's Club and Costco. Those places require larger volumes, so they aren't really great options if you aren't buying for an entire household.
I can't say I'm much of a fan of shopping at Walmart. It's convenient for me and the prices are good to very good. (Though my overall perception is that apples-to-apples it's not spectacularly cheaper than my local supermarket.) But I find that I have trouble doing a full grocery shopping there because of a combination of selection and quality.
There's a standard superstore Walmart 2 miles from my Neighborhood Market, and I avoid it at all costs for the reasons you state.
Just another anecdote.
I like to do both.
We don't have a Whole Foods, but there is a small regional chain here that has organic local produce and grass fed antibiotic free hormone free meats and such.
I use Walmart for things like 2 liter soda bottles, frozen vegetables, lunch meats, bread, condiments, paper goods, and the like, and so save money compared to places like Safeway or Fred Meyer. I can then justify going to that small regional chain when I want a steak or fresh produce and buy their expensive grass fed beef and the locally grown organic produce.
If I buy groceries at Walmart or another discount grocer, my bill is nearly half of what it would be if I shopped at a "nicer" supermarket and well over half of what it would be if I shopped at a place like Whole Foods. And I actually find the experience of shopping at Walmart to be better than the experience of shopping somewhere like Trader Joe's because Walmart's large size makes things far less congested than Trader Joe's, where it seems like everyone is constantly in the way of each other.
And this is all for essentially the same produce and meats. In many cases, the discount grocer's produce is actually better quality than the supermarket's.