The 7mm-08 is way more popular with the Campfire than it is with the big box store ammo buyers who can put the death knell on anything that isn't a .308, .223, 7.62x39 or a Creedmoor. After our deer season there was one box of 7mm-08 ammunition for sale locally and that was nothing that I was going to buy. I was at our local Fleet Farm last week in the ammo isle the clerk asked me if he could help me find something? Yes I said, 7mm-08 ammunition and told him that they hadn't had a box of that on the shelf in over two years. He said that it isn't as popular as a .308. Maybe not, but there was hundreds of pounds of .308's on the shelf and near nothing else.
Again, store manager pushing his own favorite cartridges on people. That guy and I would not get along very well. One guy here said his LGS had a bunch of it. In that locale, the 7mm-08 may be popular as hell and the store manager there is doing his due diligence to keep ammo on the shelves. Also, you say the "7mm-08 is way more popular with the campfire". That actually says a lot because there are a bunch of rifle lovers here. As JB says, "rifle loonies": We know what works and we know what works well. The 7mm08 is one of my favorites.