Of course, the higher-level machine will allow for more flexibility for the future. For the Macintosh, we've specified a single level of machine. We also provide some information about options or upgrades to these standard configurations. The recommendations provided focus on desktop computers for your home, rather than laptop computers that you'd carry with you. Some students prefer to have a portable computer to carry to classes and around campus, but most are going with home-based desktop computers.
Laptops are usually more expensive and also a bit more difficult to configure and operate.
So if your personal preference happens to be a laptop model, buy one that meets the defined system levels for desktops. We realize that many students may have computers already. If your current machine is not as advanced as what we are advising for new purchases, it may be just fine to do the work you need to do. We've provided the specifications for currently owned machines as well. If your machine is not at this level, you should consider some of the mentioned upgrades, or perhaps the purchase of a newer machine.