Should i just get a new laptop?

About two year ago my dad got me a 5517 series Acer laptop for christmas. this is my first laptop and i have been pretty rough with it, I have two missing keys (the keyboard in general is dusty), the usb ports do not work, my computer syas i need to replace the battery, and one of the hinge covers is off. Besides that normal wear and tear ,fading, scratches, the normal stuff. Anyway, next year I'm going to college and I was wondering if I should try to get this computer fixed or if i should just go ahead and save up to buy a new one. Thanks for your help ahead of time :)