I voted no.*
The non-symetric thing just doesn't work for me. I usually read with the reader in a stand. I don't need the reader to be wider.
I think haptic buttons would work better for me. I've switched to swiping (which I dislike) on my Kobo because tapping for page turning has become unreliable, so I think sensitive haptic buttons would work nicely.
If I had to pick between the Voyage and the Oasis, I'd pick the Voyage.
I don't want the cover.
* I reserve the right to change my mind.