How to convince my mom to get me a good guitar?

To be honest the Epiphone DR 100 isent bad for its price, a lot of people scoff at a $99 dollar guitar, but this thing gets great reviews and the one I played seemed quite solid, sounded very good, and the action was real good right out of the box, its not exactly my Guild D40 but you get the drift. talk her out of 14 more dollars