Families are very useful for properties that appears in differents products. Yet the price is on the product for a particular price list, independent of the properties.
So in you TV exemple, you should have a different product for TV 32" and 65". Yet a TV could have other properties such as "Color" that do not impact the price. You could therefore have a family TV with property "Color", and two products TV 32" and 65" that will inherit the same property. When dealing with lots of product and properties, this is really important.Best Regards,
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