personally, I really enjoy Georgetown cupcakes. I LOVE the icing- it's what really makes the cupcake in my opinion. I do have a huge sweet tooth, though, if that makes any difference.
I always go and pick them up myself, and I'm not sure I would pay that much for them with the shipping- I have seen on their facebook page that they do offer discount codes if you're part of their mailing list. A lot of the time someone will post the code on their page, though.
to anyone thinking of going to the actual shop- pre-order! When you get there, you go to the door, and there should be someone standing there with a notepad. tell them you pre-ordered, they'll ask for your name, and you'll be in and out in less than fifteen minutes. I don't think I'd ever stand in line for over an hour just for a cupcake, even though they are good.