What is Reseller Hosting?
Reseller Hosting is usually done by someone like a Site Designer, Site Developer, WebMaster, small Hosting Company or anyone managing multiple sites for other people.
Hosted domains within a Reseller account typically are hosting in a Shared Hosting environment, but at discount prices and/or extra benefits like more space, bandwidth, etc.
We have found many Resellers end up migrating from a Reseller account to a VPS to allow a better roadmap for growth. Based on that, we do suggest really considering a VPS instead of a Reseller account. Additionally with a VPS you get the added benefit of isolating your sites from other customers.