In the proposed lack of marketing system, you take geographically local position and sell the products to clients that find them. Knowledge about the improved p

In the proposed lack of marketing system, you take geographically local position and sell the products to clients that find them. Knowledge about the improved product spreads by word of mouth. If it is not much better, you will obviously lose to established competition in the long run but probably not disappear, just like Amazon hasn't killed local shops yet. The endgame is very similar still - one with higher reach and budget wins. Unless the competition is vastly superior.