I'm going to buy the Aura H2O for the following reasons compared to the Voyage.
- Larger screen size
- Expandable storage
- More native file support
As for some of the cons associated with the Aura, the heavier weight is negligible to me. The smaller store is not a concern to me since I purchase my content through other retailers since I don't like dealing with DRM. Everything I own is in ePub or PDF format anyway from Japanese light novels to English philosophy.