When the refrigerator in the kitchen stops functioning, homeowners will be frantic to replace it. They will buy anything in home appliances shopping trips that will keep their meats frozen, and their milk and juices cold for their children to drink at breakfast. They might not take into consideration what model they are buying, but are focused on the lowest price.
They quickly log into the Internet shopping sources and search for the retailer in their area that has the lowest price. The retailer might have better refrigerator models in their arsenal that would meet the homeowners daily needs better, but the homeowner is not thinking clearly and goes for the lowest price.
Instead of choosing to buy anything in home appliances section with the lowest price, he could have taken a moment to realize that the model he selected was almost a foot shorter than the one he is replacing. Urgency tends to cloud the vision of desperate homeowners, and salesmen will readily sell any model you choose, including one that is clearly wrong for your family.
Salesmen have no idea of what your family requires, and the better salesmen have the courage and common sense to ask....