Animated movies do take that much money to make. Toy Story is dumb as hell to mention, that movie came out in 1995. That's like claiming Batman: Arkham Knight must have cost little to make because Sonic the Hedgehog was done by 10 dudes in Sega's basement.
For a quick rundown of how 3D animation budgets rose since then:
Disney
Tangled - 260 million (they developed a lot of new tech while making it, therefore the subsequent movies came out cheaper)
Wreck-It-Ralph - 165 million
Frozen - 150 million
Big Hero 6 - 165 million
Dreamworks
Kung Fu Panda - 130 million
Kung Fu Panda 2 - 150 million
How To Train Your Dragon - 165 million
How To Train Your Dragon 2 - 145 million
Rise of the Guardians - 145 million
Pixar
Toy Story 2 - 90 million
Monster Inc. - 90 million
The Incredibles - 92 million
Ratatouille - 150 million
Toy Story 3 - 200 million
WALL-E - 180 million
UP - 175 million
Brave - 185 million
Monsters University - 200 million
CGI movies have gotten really expensive during the last few years due to increasingly powerful tech and hardware demands. League of Legends would need about six times the cultural impact than it has right now in order to enter that realm. As much as I love it, I think we can all agree that Riot Games did the opposite of promoting the world they developed for their game, especially when they got every website out there to report on how they deleted the game's lore and didn't replace it with anything.