A straddle is a way to trade volatility, so this makes sense if you think the stock's volatility is higher than the market thinks it is. (In other words, you'll make money if the stock will move more than the market thinks it's going to move.)
But only if you buy enough contracts to cover your costs. One of the big hiccups in straddles is that the stock has to move far enough to cover your costs, plus a bit.
It's very easy to make small amounts of money on options, but you can probably put that time into a minimum wage job and make more.