Because they sure aren't in this world. (Note that this is where I got three in one picture, I had done two other before i did these, +2 in a deeper area.)
All praise be to RNJesus! The algorithm consistently finds Jesus. The algorithm killed Jeeves. The algorithm is banned in China. The algorithm is from Jersey.
Because if something that is supposed to be special and therefore is something you are happy if you find it becomes boring if you get spammed with it. Why collect soomething that's common? Noone would pay a lot of money to hunt a sheep in i.e. Ireland. Maybe not a good comparison, sorry for that.