Should Pixar really gamble on doing more sequels?

Just saw Toy Story 3 tonight & it was fantastic. Pixar got lucky with getting a truly great trilogy under their belt. Pixar is now wanting to cash in on past success by bringing back a couple old titles. Cars 2 has a 2011 release date & Monsters Inc. 2 was given the okay by the studio head. Shouldn’t Pixar be creating original works & not taking risks on more sequels? I say risk, because I know (including myself) a lot of people who hated the movie cars. We (Cars haters) already don’t want to see Cars 2. Now if Pixar released a new original title, all of us Cars haters would go see it, since we have no preconceived opinions on the title, except it being a possibly great Pixar film. Understand?? Why appeal to a crowd of a devoted few, when you could appeal to all? Sorry if I’m mumbling, it’s late, off to bed, will read comments in morning. Night all. (p.s. The idea of Monsters Inc. 2 just pisses me off so much)