> I don’t understand why people care about this. The only relevant price is the one you have to pay now If Product A cost $500 at manufacture suggested retail

> I don’t understand why people care about this. The only relevant price is the one you have to pay now If Product A cost $500 at manufacture suggested retail price, was currently on sale for $450 but was sold at $360 a week before that, wouldn't you want that information to make a better informed decision?