How about making the help feature scale up, say as a % of build/research/evolve time, in higher levels. Recieving 2hrs worth of help on a 10 day build isn't much help at all, let alone a 156 day dragon evolve
Second this. Percentages make sense. But it’s not as if it couldn’t have been foreseen from the start. Percentages and static numbers are interchanged and combined throughout the research trees (with obvious intent), so I find it hard to believe that the static number for help was not intentional.