We did complete our trade and I'm much happier with the plastic case. To me, it's sleeker and less bulky than the binder, although not quite as cool looking. I have two sets of options and actually bought an extra clear binder for another $20 for my first set. I didn't want to do that again for the second set, so I was thrilled when Kyle (SteveDallas) wanted to trade. I still have one binder though in the event I ever want to switch them out.
It turns out that we BOTH asked when ordering from KnitPicks if we could get the other case and were both turned down. LOL Serendipitous, I'd say.

I really think KP should make it an
Option to buy the case you want with either set. I don't understand why they don't.
