Some policies have automatic coverage up to a certain amount of money. Like anything else, common-sense should prevail when owning a laptop. There are also security kits made specially for laptops that you can buy that will allow you to lock a computer down while it's on a desk. BC bundles are including a Defcon security lock. You can also get computers engraved with your social security number or other identifying number, so if it is stolen, it would be difficult to resell.
Desktop computers can be more comfortable to use because their keyboards and monitors are larger.
The processor speeds on desktop computers are usually much faster for the price you will pay. But also note that desk space in the residence halls is extremely limited, so a desktop computer and monitor will take up the majority of your desk. An example might help. Suppose your computer has 24 megabytes of memory. An operating system, can require anywhere from eight to 16 megabytes of memory.