Maybe how I said it didn't make sense. I do know that cost will always be a major factor. However, it should not be the primary factor. That is why, for example, extending Sheppard with something other than the subway cars just to save money should not happen.We live in a world of limited resources. Cost is the primary reason we can't do everything we might like. Choosing to spend 3x on transit per km is choosing to get 1/3 the kms built. Maybe even less because the value derived is not sufficient to justify the investment.