I realize how crazy this thread is, but I'm going to give the OP a serious answer:
If you own an iPhone 4 get an iPad 2 (or if pigs start flying this Fall, an iPad 3)
If you have an iPhone 3GS or below (or no iPhone at all) get an iPhone 5.
In my opinion, a smartphone is completely necessary nowadays and you will be a more productive person because of it.
As an owner of an iPhone 4 and an iPad 2, I've concluded the iPad is a toy to me. It can't do enough and I'm going to be replacing it with a MacBook Air, but only because I could use the money to go towards a FULL COMPUTER, and I currently don't have a very good one.
If you have a good computer, and an iPhone, then yeah, I could say you might enjoy the iPad and it might be worth your money. Otherwise, no. An iPad should be your last priority.