The contradiction is, as PC users, I have pretty much all Plus titles already, at least multiplat ones. For "exclusives" like Bound, I'll just wait to be included on Plus soon or later, for sure I won't buy it using the Plus discount because it will be given for free at some point.
No that's not your contradiction. You said that the PS+ discounts are not worth considering because games might be offered on IGC but there are plenty of discounts on retail or AAA games that are exclusive to subscribers as well as indie games. If you're unhappy at the predominance of indie games on IGC and you are not buying these games anyway, why are the discounts for PS+ subscribers irrelevant?