OP...what's your end goal? I thought about going back and getting the MRE but honestly I don't think it would do much for what I do and what I want to continue to do. I spent time in commercial brokerage and didn't care for it much. Some of that could be the 'projects' I was assigned or could be b/c I didn't have an MRE...who knows. When I think MRE I think commercial brokerage, commercial analyst, etc. If your goal is to get into the commercial real estate world (which I assume it is since you started this thread) then I think the MRE is for sure a good investment.
I work for myself now (HomeVestors franchisee, Real Estate Broker (I'll explain more in a bit), real estate investor (rentals, notes, flips, etc) and private lender. I'm not a huge fan of the traditional Realtor role but also don't want my Broker's license to go to waste so my real estate brokerage does flat fee listings and we have a buyer rep specialist who we give 99% of our buyer rep leads to. Through my HomeVestors franchise we do all things real estate investing...fix/flip, fix/rent, owner finance, wholesale and are even getting into some development. It's mostly residential but if we can find the right commercial property there's nothing keeping us from doing anything we want.
At any rate, there's lots of different avenues to take in the real estate world and lots of ways to make really good money.