Should I get my masters degree?

Hi,
I am currently half way through my bachelor’s degree in IT. I already started thinking if I should get my master’s or not. I am studying in George Mason, and they have an accelerated master’s program, which you can complete in 1 year. Some people say it is all about the experience so I should start working as soon as I graduate, but some people say master’s will help me reach job titles that will be hard to reach only with a bachelor’s degree. Also, some people are telling me to get my master’s in business. I have no idea what is best or what I should follow. Can you guys help me out please?

Thanks,
Baris