What is your current job? I am a little concern that a finance major and your current salary are not consistent.

Why the MBA? Career advancement, money, self-satisfaction?
Do you have a plan on what you want to do and how to get there? I was always surprised my how many had no plan or strategy - they thought that if they had a MBA they would get a better job and better pay.
Does the plan include you staying or leaving your current company? Many did not know how to answer this question, if you are leaving why should we pay for your education. If you are staying, who have you talked to about potential roles and assignments in the company? How will it benefit the company?
I would simple say that you do not know if it is worth it until you have taken the journey - have a written plan and timeline with goals for what you want to achieve? and what is the initial job you want? The journey is not a straight-line but guided and directed by others.