And read your own post.
...yeah...I wrote it.
If you note - you can see the overpriced campus apts comment is in parenthesis.
Parenthesis are used to either clarify the subject sentence, or to set aside relative information about a particular item/passage in the sentence.
In this case ...tuition PLUS room and board...and aside from that many times the room and board is paid to colleges for overpriced apts...meaning of course another opportunity for profits off of taxpayers.
Glad I could clear that up for you, you seemed muddled.