Why pay to go to MIT, when you can
take the classes for free?
Ok, yeah, you don't get a degree.
But you'll get the knowledge.
Personally, I prefer the knowledge. I LOVE to learn new things.
I notice
one of the areas has to do with Civil Engineering. Hooray - I would like to learn more about this (I work with civil engineers), but I don't particularly want to have to go back to college.
And briefly looking at the other areas is making my head explode from uber-geekiness. :D
Just in case that's not enough access to knowledge, you can go
here or
here.
(Thanks to
sunfell for the links.)