where to buy appliances
Problem with getting appliances shipped from someplace is that if something is not working right when they arrive, you need to find a way to ship it back - always a headache. With a physical store, especially when you do pickup, you can examine the item, and you can bring it back to store if something is wrong.
Big box stores sometime have promotions, coupons, etc that can shave some of the price off. I think for low-to-mid, big box are probably best.
Another option is smaller appliance showrooms. You can often cut a decent deal there. However, these often specialize in higher end appliances.