I have a Silhouette and LOVE it. I am still learning the things it can do but I have been making progress.
I bought mine from QVC and got a $200 download card with it- which made it a GREAT buy. It also comes with 50 patterns and you can get many more from all kinds of places on the 'net, some of them free.
Each individual download that you buy is $3-5 from Quickutz. I like this better than the expensive Cricut cartridges because I only buy the exact piece I want.
Quickutz also makes CDs with 50 images and an alphabet. Each one is built around a theme- Christmas, summer, etc. These list at $69 at Quickutz, but can be purchased other places for much less.
Both the Cricut and the Silhouette have their advantages, but I am really glad that I got the Silhouette.
See my gallery for several cards that I have made in the last few days that I've made using the Silhouette.
Gallery at Splitcoaststampers
Gallery at Splitcoaststampers
Gallery at Splitcoaststampers