I asked not because I think you should switch but specifically because you said you'd consider feeding something less expensive if you found something that worked but yet appeared to not have tried to find something that worked.The thought of loose stool or diarrhea from the 5 dogs (that weight a cumulative 585 lbs) I'm feeding is enough to deter me from experimenting with their diets. Beyond that, Danes require very particular calcium/phosphorous ratios and percentages that are simply not available from many kibbles (both low and high end).
My observation only, but overall, unless a dog is obviously sensitive to food changes-- such as giving a few too many treats is a big problem-- then food changes among relatively similar food profiles is very rarely a big deal. As in, going from 12% fat to 25% fat might cause digestive upset but from 18% to 20% and with the same main protein does not.
I thought you were feeding Earthborn but I wasn't sure when you mentioned "high end" food as I think of Earthborn's price point as more mid-range so you probably wouldn't be saving much by switching then; I give the same pitch (excepting the Danes part) for Pro Pac I like paying $28 for 28 lbs from the same reputable company.Back to the original topic - I don't like Earthborn because it's "high end". When I recommend it to people, that's never part of my pitch. "Correct calc/phos percentages for growing Danes, my dogs do well on it, minimal shedding, good solid poops, US-based company owned by Midwestern Pet Foods, who is a decent parent company, their bags are made with recycled materials so their carbon footprint is very small, and they have never had a recall". Definitely not "it's $52.99 for 28 lbs so you can feel superior to your pet owning neighbors!"
Just as a general comment, not directed at anyone--
I like being able to switch foods often. It means I can take advantage of sales and promotions or grab something at almost any store that is convenient when I start to run low.
I think everyone should have at least 2, preferably 3, widely available formulas that they know their dog does well on (I do get that some dogs with severe allergies are best on a single food but many/most dogs have more options) because recalls and stock shortages happen or there's a snowstorm and you realize you're short of food or money gets tight and a few months of savings can really help or one's usual pet store goes out of business etc.
I tend to think of low/mid/high price ranges as roughly <$1/lb, between $1-$2/lb and >$2/lb for dry food. I usually add that information if someone asks me for a food recommendation so I can get an idea of their budget and suggest accordingly.