Any studio that can take 1 film and a bunch of ideas for other ones, lay it all on the line to get that one film produced, and then have it be a smash hit that fueled the cash to further produce all those ideas into actual other movies. I mean they sat down and came up with the ideas for: Toy Story, Cars, Finding Nemo, Monsters,Inc., A Bug's Life, and Wallie all at one time. Probably a ton more that I can't name. They have got a great cast for every film, some of the best voices/names in the business.
And what's better is, all of the actors believe in their characters. Pixar has a great way of making characters that we instantly endear ourselves to.
Honestly, I'd have to say that TS3 is long overdue, but I'm glad they've gotten back all the old voices.