Why does toyota have 2 levels of service? on 2006 Toyota Highlander

When I go in for routine service, I'm offered a lot of add ons that I don't want. I finally got a maintaince schedule from the dealer that offers factory required items. /and another level with excess add ons like washing battery terminals,etc.

Asked by for the 2006 Toyota Highlander
Some people want the extra service all you have to say is no thank you