That's a universal problem in estimating inflation. People buy different things, and products come and go. How do you compare a house build to 1900 standards t

That's a universal problem in estimating inflation. People buy different things, and products come and go. How do you compare a house build to 1900 standards to one build to 2020 standards? How do you compare fresh foods from the local farmer to factory-manufactured ones? People shift preferences based on prices too. Manufactured goods started out as premium products, and now, fresh foods are increasingly a premium product. It's an impossible problem. People either do their best, or lie with statistics, depending on the domain.