This week, Dell released a 24-inch all-in-one LCD PC, which incorporates everything you need in a modern desktop computing system. While these types of computers are great for saving space, they all have one major drawback in that you can’t upgrade them much, aside from the usual memory options.

Of course, if you’re inclined to do so, you could crack open the case and upgrade the hard drive too. But hard drive and memory upgrades are about as far as you can go. Think of all-in-one PCs as laptops: small, easy to manage, but nearly impossible to upgrade. (Ed.—Bah, notebook upgrades are easy!)

The other major draw back is that you’re forever stuck with a 24-inch screen. The screen is about the most important piece of hardware in a computer system. If you invest in a great screen, it should outlast your computer for a long time—so don’t skimp on displays when you’re out hunting for one.

Check out the full report on Dell’s new all-in-one XPS here.