Not a big fan of new and improved console hardware being released, for one its shitting on the early adopters that made the PS4 a success.
As long as new games continue on being made for both models (i.e.: No PS4.5 exclusives) then I don't see how it's punishing early adopters. Early adopters got to play some pretty graphically impressive games while the majority of console gamers were still on last gen.
Second, they think they're not Apple coming out with newer revisions each year, hate to break it to Sony but Apple's products sell like hot cakes because it's technology that's not limited to just gaming. I hope Sony aren't pulling a Sega with more add-on accessories as people will just get tired of buying revised versions of PS4 each year or 2 years.
I agree that it would be really dumb if Sony released a new console model every year but I don't think it's going to happen.
I simply think this move is nothing more than the present day version of a "Slim". I think Sony (and MS for that matter) feels as if people expect more from newer versions of (current) devices than just a smaller size due to the "iPhone S" model being around for almost 10 years now (it started with the 3GS).
For example, people with iPhone 6 are getting the exact same support as people with the iPhone 6S. The latter just runs apps a bit better. It seems like that same model will be true for PS4 vs. PS4.5.
One thing is to create a slim model and another is creating a brand new PS4 hardware with updated specs that shits on the hardcore fan base.
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But the hardcore fan base usually gets slim consoles anyway to replace their "old fats". Wouldn't it be better to get a console with a bit more power instead of something that's exactly the same?
Also, this move will be to more than likely help with the fact that console gaming doesn't have as many "casuals" as last gen did. A cheaper (typical) slim model probably won't increase sales this gen as much as they did last gen due to that fact.
Might as well "kill two birds with one stone" and target casuals who are going to jump into this current gen this year as well as core gamers who care more about graphical power with a new slim model that is more powerful than the original.