As long as animation is treated purely as a manufactured product, the art of animation will never develop past what it has been in the past.
However, I recognize the need to make money with the sale of an animated project. Budgets are always a problem, but for the most part, the money is usually spent in the wrong areas. To me, the most important areas are story, design, and the planning of key animation scenes.
There is never a reason to pay outlandish salaries for "famous" voices. The voices of famous actors don't carry an animated film, which should be unfolding its story pictorially. Actors with solid deliveries will do perfectly well.
I'm not against voices with unique qualities...I'm against paying 30% of the film's budget to hire that voice.