Resellers offer additional space for your use. They also allow you to host other domains, subdomains, and more. It gives you more abilities and options, especially with cpanel. With a reseller, you’ll have WHM which can not only give you more options, but it also gives you the ability to host others and give them cpanel access as well. If you don’t want to host others, that’s fine too. Resellers are great for everyone. It makes hosting your other domains great because they’re all nice and neat in one place. Resellers opens great new doors for you!