DO IT! I thought immediately of you when I got that email. That is the exact price I paid for mine, on Black Friday a few years back, and it is a great deal.
I have both bugs. I use the expression 99% of the time, but I can't bring myself to get rid of my baby bug. It hasn't completely collected dust, though. I have let a friend borrow it, and I have brought it to crops when I had a lot of cutting to do and I didn't want to be a Cricut hog.
You definitely will not regret buying the big one. It's not just being able to make bigger cuts - there are several other features that make it worthwhile.