Appliance dealer: Appliance manufacturers commonly modify existing models without giving the modified versions new model names.
Conclusion (Therefore)
Consumers have little reason to object to the common practice of modifying existing models without giving the modified versions new names.
Evidence
Manufacturers' modifications to existing models are invariably improvements that benefit the buyer.
Evaluate
Given that ... any modification the manufacturer makes to Product X will be an improvement,
How can we argue that ... there is a reason for consumers to not like this practice of updating Product X without giving the modified version a new model name?
Maybe someone doesn't want the new and improved model? They liked the older one better for some reason? Maybe they're buying Product X for a friend and they also own an older version of Product X, so it peeves them when they find out that the version of X they just bought for their friend has some dope improvement that theirs doesn't have?
Maybe they think they're getting the newer model, but some store has really old, unsold inventory, so while everyone else is selling the newer model of X, some store is selling the older version.
Goal
It's hard to predict the specific answer, so we'll just cling tight to our Anti-Conclusion and think,