In Phoenix AZ, do I need/want a real estate licence to flip?

[Edgar Rosales]

I would like to flip houses in the Phoenix area and was wondering if it's beneficial to obtain the real estate license?

The Big Picture: 

About to start a full time engineering job at a local tech company. I will apply my free nights and weekends on extra curriculum activities (i.e. real estate and its derivatives). I have 10 years of construction background, either I know how to do it or who to bring to the table to help me get the job done. My salary is 90k. I have 20k in initial investment capital due to a hiring bonus but also have 120k in student loans (fyi: after much research, for me it'll be to invest first then to pay off the loans).  My goals are to buy, rehab,  and sell back to the market. Use all gains to pay off student loans which are at 7% interest rate.

Pros:

1. According to Marty Boardman (BP Radio Podcast 001), all Arizona flippers should get a license because other agents don't want to do the dirty work for you.

2. Save when selling or buying 

3. Access to MLS, all raw data.

4. ------BP members add more------

Cons:

1. Time and money to get licensed

2. Other successful investors don't have a real estate license.

3. MLS can be access some other ways (i.e. diluted MLS via websites like realtors.com)

4. ------BP members add more------

All constructive criticism is welcome! :) 

Thank you

Edgar