Obviously, you are entitled to your opinion, but to say those blanket statements to another poster without knowing how they tour doesn't seem right.
Personally, for my family, ILL does not have value for over half of the rides. SM, FEA, RAT, MMRR, and EE. We enjoy those rides, but I don't like SM at WDW enough to pay $21 for my family of 3. Same with FEA and MMRR. RAT we rode in DLP, it is a early version of MMRR and we weren't impressed enough to pay extra for it here. EE we will utilize single rider. With all that said, I know one thing is 100% certain -- that is just my personal take and all ILL's could hold tremendous value to a different person or family.
Same goes with G+. If I can wait in 5 minute LL lines versus 15-20 minute standby lines over the course of a day at one or two parks I feel it is absolutely worth it. YMMV, and that is totally fine. G+ clearly sounds like it is not for you, but it could be for other people. So just like I won't get ILL's for all those rides mentioned, you won't get G+. What works for both of us is different. And that's ok.
Everyone has their own way of touring the parks. Some see value in none, one, or both G+ and ILL. I think everyone has to figure it out for themselves.