What makes you think your tofu is going to drop in price ? The supermarkets would rather let it rot, than allow you to buy it for less money.
To put that another way, you have already made it clear what price you're willing to pay. The supermarkets now have an opportunity to source the product more cheaply from farmers who are overstocked. That means more profit for the supermarket, not lower prices for you
Oddly, that aligns with lower education levels amd less exposure to new information, between rural and urban settings.
Farmers may well be outstanding in their field (pun intended), but that's where it stops