Five Nights at Freddy's

[Whatswiththeheadbands?]

Originally Posted by Shiro Kame

In the prequel, it is explained why they're trashed. THey were originally being retro-fitted with new parts, but were abandoned when the company decided on replacing them with the cutesy Toy models. The background story being vague is what makes it so fun and allows the creator to add more lore and backstory in later installments.

That, and it makes people think about it, and come up with so many theories.