You don't care for substantial discounts and free games? Why?!
Long story short: I don't want to pay extra for online when it should be INCLUDED when you buy a console.
As for discounts, they are substantial WITHOUT PS plus too. On some occasions you get a better deal with PS Plus but if you wait a bit longer that "better" price is the next sales promotion for everyone and not just PS Plus members.
As for free games, they are not free as you must pay for PS Plus and the moment you quit your subscription you don't have access to the so called free games you chose when you were a member.
Then don't buy it for the online play, buy it for the games, the online storage, system updates and downloads when in standby, and the discounts. I pay monthly, and between having cloud backups, the free games, and the discounts, it's totally worth it to me. I don't even play games online but I still pay for PSN+ because it's worth it.
COULD those things be free? Sure. But I could also pirate all my movies. I don't mind paying for a service if it means that I get better service.
I don't LIKE that you have to pay for online, I didn't like it when Xbox 360 was doing it either, but I'm an adult now and the pocket change I pay per month for it is worth the convenience. If you don't feel that way, that's fine, but don't act like it's an affront to your sensibilities to pay for a service.