HN user
If you ever had time to put together a blog post with your config files, I'm sure more than a few people would be interested. I know I have struggled with setting up a reasonably looking Linux on the MBP Retina, and in the end given up.
Most of the evidence[1] I've seen tends to suggest that whether or not you'll attend university is determined at a very young age. If credit and scholarships are available, then the fees themselves are unlikely to be a deterrent, hence no fees is a subsidy on the rich. This strand of research doesn't really talk about the differences in performance once admitted, though (piling up debt might be extra motivation to do well).
What I'd like to read more about is research on progressive fee systems (e.g. based on family income) and the consequences on admissions and subsequent performance.
[1] e.g. http://onlinelibrary.wiley.com/doi/10.1111/1468-0297.00075/a...