I remember I got one for my birthday and I opened it up and literally freaked out. Like holy crap this is every art supply I have every dreamed of ! Suck it little kid friends, I am going to be an artist with all this great crap.
You sit down at your little art studio, aka the kitchen table, and you get out a fresh piece of computer paper. You are finally ready to create this said masterpiece. Then you grab a marker... it is already dried out. So you grab another one thinking that was just a dud. You are wrong. All the markers are dried out. What is this madness??! Then you decide to go for the crayons. O what? The crayons are absolute crap to!? Of course they are, this isn't crayola we are working with here.
That is when your dreams are shattered. This isn't the ultimate art set. This is a horrible thing in disguise.
I suppose if you ever want to really disappoint a kid, or just straight up don't like them, and you are evil, then you already have your christmas list planned out now. :)