Isn't that always the case
If you are going with (dare I say it) sam's club batteries, or if you "know a guy" that deals in batteries, you can get 2 new batteries for the cost of this device. (set money aside, repeat for next two months, buy new batteries - give or take a few bucks...)
I've been eating off the dollar menu, saving my lunch money to save up for new batteries. That's what happens when you get married.