Are the PS+ "free games" the crack that will bring down the industry?

[SvennoJ]

It got me hooked on the Infamous series, now I'll be buying Infamous SS week 1.
And the discounts have made it easier to buy games I was not entirely sure about.

Other free games I missed or didn't think they were worth the money have put certain developers on my radar, so I'm more interested in their next projects. From the makers of .... now means something for those games.
It works both ways, now I know for certain Borderlands and Hotline Miami are not for me.

I guess you can make do with ps+ games only. But someone who is only going to be playing old games is a lost sale anyway, since they'll be buying used.