if you want to see price gouging,
go to the kosher or passover section in shoprite or pathmark.
compare those price with the prices in the kosher stores.
People who don’t ordinarily (nebech) look for kosher or jewish style do come to these stores before passover and pay those monstrous prices.
(Someone claimed to me that it is not all the supermarkets’ fault
but that the distibuters charge them more. I just don’t know)