So you're saying that using numbers works perfectly? Because any business wants people to think they need the latest release. For that reason, the rest of what you said is largely irrelevant.
At the end of the day, a "creative name" means nothing. People don't care. They'll buy an iPhone 7 or whatever else, as long as they think it's the best product for them. The real goal for a business should be to not confuse the customer or create a negative connotation.
I am looking at it in a customers perspective not a buisness perspective.
For me, unique names make the console feel unique and irreplaceable where as a numbered console gets tossed away the moment they buy the latest model.
I prefer creative names, numbers are just plain boring and expected. There is no creative thinking behind using numbers. That isnt just console based but Phones are also criminal to over using numbers for models.