Just a quick update: I just ordered the Swift!
I think both bikes would be fantastic for my purposes, but I need to know a little more what I want from a folder (and how best to set it up) before I plunk down the big bucks for the Crusoe. I think the Swift would be a great platform for me to experiment and learn on in the meantime.
Thanks to everyone for your inputs, very helpful as expected. Look for my updates in the "swift folders" megathread