I think one product can go down the price of it same in cryptocurrency or bitcoin can go down it's value or price but it does'nt mean it can't rise again.Well,Just like business when you first open your store there's a lot of buyer who buy and try your product but suddenly as long as your store open and you buyer getting tired of wait they always see your store probably lost more buyer so it can come the word crisis.So ,You as a bussiness orginizer you think an idea to solve that crisis in your store.