That's an A4/Letter sized printer, right? The main reason to switch would be for larger format printing. 13x19 is a nice big size, giving you a little bit more room than printer that can only print on A3 sheets (13 x 19 seems standard for wide formats these days though). With the smaller printer you would have to print on multiple pages and align them somehow for larger prints with lots of text (i.e. a company shirt with website, etc), and be unable to do large single-image photos.