Mostly traditional products that have been on the marketplace and store shelves for decades.
Because the local stores don't carry them any more.
I’m noticing that many stores now carry a much smaller selection of products and do not carry much inventory. Hardware stores used to have pegs jammed full of products; today you’ll see only only one or two of an item on a hook and there will be a clip on the hook so those two items are kept at the front of the hook. And that’s only of the hook isn’t completely empty.