Home labs come in so many different shapes and sizes, and as is the case with modern PC builds, shape and size is rarely a great indicator of overall performance or capability. Of course, there are limits to what you can do within a certain physical space, but for the most part, a home lab that’s built from a spare laptop, small NAS enclosure, and an old gaming PC can be just as capable as old enterprise gear. A rack necessitates a certain form factor for your hardware, and unless you’re planning to expand in a way that a rack would make logical sense, it’s the last thing most people need for their home lab, especially if you’re just starting your journey.