Graphene is great, I've been using it for a few years now. But I started wanting more storage, so looking towards the Fairphone and Shiftphone, which would require a move to Calyx or Lineage. That got me thinking about the state of AOSP, seeing Google being rather abusive towards FOSS, and I think Sailfish attracts me more that Ubuntu Touch at the moment. It seems to get a lot more development effort, and has the C2 as a more guaranteed first class citizen.

Now getting one to the US, that's another question.