Setting up as a provider once meant renting servers, chasing feeds and being woken when one died. None of that reaches you here: buy credits, open the panel, and create a customer account in roughly fifteen seconds.
The cost most resellers underestimate is not infrastructure, it is support, and almost all of it is the same handful of device questions asked repeatedly. Every walkthrough on this site can be forwarded to a customer exactly as written, which removes the bulk of that work before it reaches you. Each account is issued as a standard Xtream login, so buyers may run whichever player they prefer.