Some students are majoring in areas that require the power of a desktop computer. It would be difficult to constantly hunch over a small, grainy screen if, for example, a student were taking a computer programming course.
Other majors more appropriate to the desktop computer include engineering, writing, business, and computer science, where use of a computer is crucial to getting course work done. These majors often require students to use power-hungry applications that run much better on the desktop computer.
Students spending long hours in front of a computer will find that using the large monitor of a desktop computer reduces eyestrain and increases the amount of time that can be spent using the computer comfortably.
As mentioned above, desktops usually have better sound capabilities, thus eliminating the need for a separate stereo system in cramped dorm room conditions. Add a TV tuner to a desktop computer and the need for a separate television is also eliminated. Although it may be true that laptops take up less space than desktops, desktop computers are powerful enough to serve several functions beyond normal computing. The result can be more total room when combining several large appliances into one desktop computer.