sacrificing for fashion

The lining of my most expensive purse (which was, about what, $50?) just ripped. I only bought it at the beginning of the year. No, I didn't use it every day - most of the time I've been using my various canvas tote bags anyway. I'd been trying to use it more because I wanted to look more professional at work. Do I need to suck it up and spend $300 on a designer purse that'll last at least a year?