PS+ costs 50 dollars. I want Uncharted: Golden Abyss and Gravity Rush, I would buy them legitimately. Both games combined cost more than 50 dollars. I got them for free on PS+. Look at that, I just covered the $50 cost I paid for the yearly subscription because I would've spent that money on those two games, so I just got my money back. And now everything else for the entire year comes at no cost.
I'm "renting" them forever at no cost, as long as they offer at least $50 dollars worth of games i'd buy anyway for free ever year. Which as i've said, they've done plenty of times in this 7 months already.