Your comments

"Everything in New York costs more." Fair enough.
"You can't get a decent deli sandwich for under $7.50 these days." Restaurants and some locations in the city prove otherwise, but I'd be happy to see pictures of these places you mention.
"Also, Stony Brook has a huge variety of food." Variety=/=quality. The amount of money spent here does not reflect the quality of the food nor the time spent in line.
"All three of my older brothers went to different colleges..." Which colleges and what were the prices?

"Stony Brook probably spends a lot of money..." The amount of money in which the school spends is not indicated in its food quality.
"So yes, it costs a bit more." It costs a whole lot more than some off-campus locations and groceries, with the latter two often being of better quality and/or cheaper.
"I've had leftover food after almost $10..." "Portions are a fair size." That doesn't really work for some folks of different body sizes.

"And considering they have to feed thousands of students..." By that logic, it's acceptable to have food quality decrease should the number of students increase as long as this unsaid ratio is maintained. This also does not factor in the increasing food prices.
"To improve the quality of portion sizes would absolutely increase the price." Neither of those have happened but the prices have already been increased.
"So quit complaining. Toughen up." Patronizing the other students here accomplishes nothing.