That can depend on what you’re looking for in a pet. Many of the best pet spider species can be handled out of their habitat but will likely be less interactive than cats or dogs. Much of the joy of owning spiders comes from observing their habits and behaviors, similar to the enjoyment of owning fish or reptiles. Plus, most friendly spider species are hypoallergenic and usually make less noise than other pets.
In addition, arachnids often require much less care—and fewer care costs—than cats and dogs, and some pet spiders can go days, weeks or even months without maintenance. The majority of the costs involved in owning a spider will come from providing your pet a habitat, adequate heating and lighting and food—all of which are often cheaper than they would be for some other pets.
If you’re looking for a low-maintenance companion that can be visually stimulating, then keeping spiders as pets could be suitable for you.