The number and type of products available in local stores varies greatly depending on the location of the store, number of customers and funds available with the store owner. Often a small store owner will not have sufficient funds to keep a large number of products in stock
Many products are launched with great fanfare by the manufacturer or marketing company, and after a few months or years, they are no longer available in the market or a particular area due to the unpredictable demand, or the local dealer/distributor is unable to market the product.
Even for relatively popular products like chocolates, the local retailer may not stock the same brands and type of chocolate after a few weeks. So information about a particular chocolate or other product online can be useful for those wish to purchase the product in bulk