I debated that very question for a while before making the switch. In comparison, you will go through at least 2 sets of lead acid batteries compared to 1 set of lithium batteries. So, cost wise, even though it is a larger investment up front, the lithium batteries end up cheaper in the long run. Factor in the time you don't have to spend doing battery maintenance and cleaning the floor under the cart, it becomes a no brainer. I love mine!