No it doesn't, not if you launch satellites where customers want them. Kerbal Space Program should really bring home the big fundamental about orbital mechanics: plane changes are really expensive.
There are ways to make plane changes cheap (do them high enough, use gravity assist, etc.) and they could be useful when shipping fuel higher from Earth's gravity well, but I admit, current space missions are nowhere near that complicated.
Also, while expensive, plane changes are still cheaper delta-V-wise than punching through the soup our atmosphere is.