Sony can't afford to make games
Yeah....sure, its called heart. Anyway, its better to have a company focused on new and old ip's rather than a company that lives off of old IP's (obviously not bad ones) and another whose first party isnt on par and depends on third party.
And why exactly is this better? you seem to imply that "new" IP = more enjoyable or fun for gamers.
Mario, the Masterchief and those games from EA, Ubisoft and Activision (third party) are not inferior by any means to any "other" first party. To me. But this my own oppinion :)
Im not saying this. Sony has their characters too, but they have the drive to make more because the variety what gives gamers choice. This is where Sony is miles ahead.
Def. not going to arg with you about that fact : Sony is trying hard to please gamers with different type of game.
The part where I disagree is about that being better in general (for the company itself and for the gamers). The opposite may also be true, having Nintendo/Microsft focusing on beloved IPs is actually as good or even better to me. At the end it really depends on us, I prefer MS to work and spend my money on Halo 4, 5 and 6 than creating new IPs. Same for Nintendo with Mario and Co.
So I would say that it is simply a different strategy and it may please one type of customer and not the other.