OK, maybe TVs should have never gone 3D. Maybe they should have never gone HD. Maybe they should have never gone moved to flat panels. Maybe they should have never gone widescreen. Maybe they should have never gone over 12" in size. Maybe they should have never gone to colour. Maybe they should have never introduce audio on TVs... Get the message? It's called progression, and yes, of course it is there to generate sales, but it's also there to move technology forwards.
Like I said, nobody is forcing you to buy into anything. Just buy the game on its own if that is what you want and stop worrying about what could have been or what other people are doing. Yes, PD (or more to the point, SONY) are doing it to generate interest, sales, and take advantage of those who will buy anything labelled as special, limited or signature. They are, after all, a business who are out to make money.