If you appreciate value and don't need the latest technology, consider a used laptop when making your next computer purchase. Many pre-owned laptops have the same essential parts as their state-of-the-art counterparts and can work just as well.
Except for all-in-ones, desktops have multiple components. A tower or case houses the parts that make the computer run, such as a screen, monitor, keyboard, processor, etc. A laptop contains all of these in one smaller, more compact unit, with a touchpad acting as a mouse. With a laptop, there are no restrictions on where you can work.
Simply put, when you buy used, you pay less. For example, a used MacBook can sell for far less than the newest version, but you'll still get a quality device. If your budget is tight or your emphasis is on value, think used if you're not familiar with laptops and want to try one out, or if you're switching brands and aren't sure if the new brand is for you. Used items also make sense if you need more features than your budget allows when buying new. The high-resolution screen or more powerful processor that's out of your reach in a new machine could be attainable when you find a used laptop for sale. Most software is engineered to be backward compatible, meaning the latest versions will run on older hardware. Depending on the age of the used model, your current software generally will work.