Stickers

Why do kids love stickers? I bought these stickers the other day, there are over 2000 and it was just a couple buck, and they will keep Luke busy for a while. I bought animal stickers and it's just so cute hearing Luke try to say the names of them. He is talking a ton lately and pretty much tries to say everything you say, except for "grandma" which is really upsetting my mom. :) But really he is talking a ton. There is still a lot I don't understand but it's just so cool to talk to him and have him answer me back.