I love my Big Shot too!! I love the new dies they have been coming out with, like Hello Kitty, I love that it cuts felt and chipboard and any other stuff I would not risk cutting my other machines, and I love the new Stampin Up dies for it too. I recently started using the texture plates (embossing) and those ROCK too!
I have EVERY machine QuicKutz has ever put out (including both Silhouettes) and I still love my Sizzix. I did not care too much for the Sidekick so I sold it and all the dies (I have since bought a handful of dies to use with the adapter in the Big Shot). The Ellison Warehouse is about 1.5 hours from my house and they have a huge sale every fall where I stock up on dies at a good price. They also have a mega sale online that time too.
I try to get versatile shapes I can use for multiple things so the cost does not bother me. I mostly use it for flowers or flourishes anyways.
So here's to the Big Shot!
Thanks for starting this thread!!