I've been wondering about this 2022 but looks like it's not getting any attention :D - Domain resell will help us as an agency and others a lot to quickly get a domain for them in-house and set it up and even if they unsub our monthly plan we can easily sell them an annual plan only for domain+hosting their website.

And of course, it removes the extra steps like going to another site and buying a domain + we get to make some income through this if it's reasonably priced at Highlevel and we sell it for a standard price. Thank you!