Preworkouts do contain other beneficial ingredients that will help with endurance, pump, and focus. Many of them do contain creatine that doesn't really have to be used preworkout. If one doesn't a tub can be picked up for cheap with. I don't pay for preworkouts anymore but felt they are worth it when I did. We have a buy 2 for $40 deal on VaporX5 going on now. The link is in my signature if you are interested.