This is a business decision for me as it all comes down to how many hours I have in a day. I'm a one-man shop and need to spend time on other things that need my attention versus messing around with Directv infrastructure. It's all about billable hours.

New install - advise client of service offerings. Help with call to service provider for initial installation and account setup. Meet installers and manage them while on-site to install their system.

Existing install - troubleshoot problem, manage tech during on-site visit. Occasionally I will order/replace Directv STBs when I know the box is dead. It's faster and more efficient than waiting for the tech and their 4 hour appointment window.

I sub out my dish service work to a local commercial satellite guy. Advise client of problem, schedule my guy in, complete the work, he bills me and I bill the client.

Now if I had a crew and was looking to fill their day with billable hours I might have a different take on this....