The same as every consumer product ever - the cheaper option sells to those who are more price conscious. What you're describing is an economic fallacy, although one people can fall for in certain cases, where better value isn't better value if it's unused/unvalued. Let's say I have the choice between 250 GBs HDD at 5 cents per GB, or 1 TB HDD at 3 cents per GB. Obviously the 1 TB is far better value, but if I'm only ever going to use 100 GBs of storage, that added value would be pointless added expense. Going large at the take away might be better value in terms of food you'd get, but if you'll be full on a medium serving then spending more for more food you don't want means spending more than you need to.Consoles, you'll be paying with PS4 Pro currently 33% more for 2-3X performance. I dont know that the video card analogy is valid, but if it was it was, how do you think that battle would go?
3X the performance for a 33% increase in performance is better 'objective value', but value is intrinsically subjective. Will slightly better graphics be worth another $100? To many people, definitely not. Hence spending more for something they won't appreciate would actually be the stupid move. Regardless what other options there are, PS4 is 'good enough' at the right price.