Current PS4K rumours have been received with mixed emotions to say the least. The biggest reason given by many that would not be happy with a PS4K is that they would feel ripped of if they hade to pay another $400 after just three years. However this is not the case:

Scenario without a PS4K: You bought a PS4 for $400, and after six years you sell it for $100. This would have cost you $300 after six years.

Scenario with a PS4K: You bought a PS4 for $400, and after three years you sell it for atleast $200. You then buy a PS4K. This you sell after another three years for atleast $200. This will have cost you $400 after six years.

Total premium for a PS4K: $100. Also note that $200 for PS4 after three years is a very low estimate, you would likely get a bit more(same for the PS4K). So it could be as little as $50 or perhaps even less. Now for that moneyis assume you would atleast get: PS4 games at a higher frame rate/resolution, 4K support/HDR support and probably a 4K Blu-Ray player, a much better PS VR experience(probably any PS4 game at 60 fps) etc. Also if you currently own a 500 gb PS4 you would double your storage capacity.

Looking at it this way it would almost be a rip off from Sony to NOT release an upgraded system.

PS4K won't be 400$ that's for sure.

Even if all it does is play 4K Blu-ray's.

No matter how you look at the PS4K, it's a bad thing. If all that it does is play 4K Blu-ray, then I suppose it's not a big deal. However if there is any difference in power, then that sucks a lot.

Although I agree that a business model like that of smartphones would be terrible, having to wait six years for a new model smartphone would probably be even worse. That would be like going from the first Galaxy S to an Galaxy S7 in one go. Why not atleast something like a Galaxy S3/S4 iafter three years, especially if that first Galaxy S would receive new software and updates for a total of six years?

Also with or without a PS4k, a PS4 would be worth roughly the same after six years. So why not offer the option?

I think upgradable consoles seems like a good concept too. It will just depend on how it's done. I don't think ps4k will be $400 or be able to play 4k games though. We'll have to be patient.

I disagree. No matter how you look at it (objectively)  it's a good thing. 

There's an elective purchase that I CAN make for upgraded visuals. However, if I choose not to,  I'm guaranteed the same games as before. 

What if all the games are the same but just are scaled up/down? More like the pc market? 

its bad for them because they cant afford it or at least in their mindset/lifestyle they think that way. People upgrade phones every year or make all these crazy expensive subscriptions to get them.

This is a huge boon for PS4 owners if their PS4 games are enabled to be upgraded in graphics like you would have a Remaster but it will be for free.

yes it will be 400-500

I don't really get the reason for it. The regular PS4 is selling like crazy.