To throw out some data, checked out the Stratford site, which is the education entity whose students overwhelmingly dominate the OPT STEM program. Looked at Software Engineering, Masters. All courses can be taken online. There are 5 core classes and 7 elective classes. Of the 5 core classes the one that sounded the meatiest was Software Engineering. The description made it sound pretty easy and shallow. Total tution cost for that M in SE is $22k. Overall impression from looking at their site is it is oriented to foreign students, and online-centric, and gave me impression of being a diploma mill. Getting a M in SE from them looks pretty easy and fast, as long as I cough up the $22k.