There used to be 6 Walgreen's in my city. Now there are 2. I've used Amazon to fill some of that gap because the 30 minute drive is bonkers for toothpaste. COVID hit this economy like a Mack truck and helped the monopolists grab even more of a share.
It might surprise you to know that there are different kinds of toothpaste and even toothbrushes, all with differing levels of effectiveness. Some people get advised to use specific kinds by their dentist.