Hey MX Utah, My name is Chris and I live in the Phoenix area. I run into students of MMI once in awhile at the local tracks. Most have told me it was a total waste of time (now remember that is their opinion). Others have said they learned a lot. I did notice however, the ones that thought it a waste of time had pretty good knowledge about bikes.
As Mr D said and I believe this to be true and that is, the piece of paper is sometimes worth more than the knowledge.
Now as for work, like anywhere else, it is tough to find a job. Not sure what back ground you might have, but work is a tuff thing to come by. As big as Phoenix is, it is still tough to find a job.
Just my thoughts, good luck.