I'm with Peter here, I had a friend speak to me asking about the same situation, well it was a client actually.

INX-Gaming.co.uk hired me after a long talk about whether or not to keep their gaming server clients seperate from their dedicated server / colocation clients. I suggested this because having a different website, different billing system and a different brand for it would make it a hell of a lot easier to manage the clients and correspond them into a seperate client group (i.e, Dedicated , Game Server , Colocation, IP Transit).

The cross marketability of both brands (INX-Gaming and INX-Network) is a very high factor. For example game server clients may fancy starting their own game server company after renting a games server from INX. All they have to do is rent a Dedicated Server or CoLocate their own server with INX-Network, and begin the server administration process.

How Handy eh!