I just bought 600, 3/4 inch fish, 200 Nile Tilapia, 200 red Tilapia and 200 Rohu, all from the government for 1/2 cent a piece. Previous to this, I bought 200 1 1/2 inch fish from them and they ran a penny a piece, you are right your tax dollar at work, in my case, however, you get what you pay for there were assorted unknown fish in the mix.
The commercial dealers charge 7.5 to 12.5 cents per 1 1/2 inch fish, depending on the species, but offer a much wider range of fish.