If you want second grade strawberries at an extremely reasonable price, go to Green Valley Strawberries. They sell 500 gram punnets of seconds from the packing shed door for just $2 a punnet!!!
They are bursting with flavour because they are ripe to eat immediately compared to first grade strawberries that are picked a little earlier to get a greater shelf life in the supermarkets.
This is the cheapest place to buy strawberry seconds that I've ever found. You have to keep an eye out for their A-frame strawberry sign on the edge of the road. If it's out, you can come in and buy strawberries. If it's not out, better luck next time.