I'm sorry I can't be of more help to you but here is what I can tell you. I have an expression and as a papercrafter, and not just a scrapbooker, I appreciate the fact that I can cut 12 X 12. The first thing that comes to my mind is envelopes! I love making cards....probably more than scrapbooking.
I am also a teacher, so the flexibility of being able to cut bigger things is always a thought.
When I first told my husband that I wanted a cricut, I told him that a small one was all I needed....well, he took it upon himself to get the "Bigger, better" one! Typical man huh? But I am so glad he did it!
When you do get a cricut, I suggest going to you tube and doing a search for "my pink stamper". The lady who makes these videos is named Robyn and she does some really great tutorials!
Have fun Hope!