You are fixating on SUSY, not CERN. A new collider is needed to find out what's beyond the Standard Model, whether it's SUSY or something else entirely. Your s

You are fixating on SUSY, not CERN. A new collider is needed to find out what's beyond the Standard Model, whether it's SUSY or something else entirely. Your statement that "it certainly won't be with a larger collider, especially since the last search failed" frankly makes no sense, and the claim that "the higgs was already found before" is incorrect. This is mostly true though: "the main thing behind the LHC was to see SUSY or general new physics beyond the SM" (I say "mostly" because the energy range was chosen to ensure that either the Higgs or something else would be found; if it existed, it had to be in that range, and if not, something else had to do its job). And that statement remains true about the next collider. It will look for "SUSY or general new physics beyond the SM".