Would you leave your job?!?

If you are unhappy where you are, and not enjoying your work, would you leave your current position for $500 more a year?! I do reception work now, with a little accounting. I work for a small accounting firm with only 3 employees including my boss. I do mostly photocopying and answering phones. I was offered a position as an Accounts payable clerk in a large corporation with promise of room for advancement. I would get full benefits, and the basic holidays of 2 weeks after a year, and 3 weeks after 3 years. What would you do?!