We setup manually that way we can get to know a little bit about the Reseller. We want to make sure we can provide them the best service and want them to fill more like a valued friend and client, then just a number. I think it is more personal as well because then they can ask you any additional questions and you are more likely to remember them creating a interpersonal relationship.
Also, being that we are in the US we need to make sure we know where are customers are from because of sanctions and embargoes. We also, want to make sure that they provide us with accurate information and understand proper usage of our service.
Hope this helps!