Well, shooting a K-01 and a K-30 I'd really like to get those 14 bit in the K-3 RAWs... sometimes I really struggle with the conditions.
Caveat: I'm not into doing art-photography or pretending that I have a "vision" or something... all I care about is bringing home well-crafted and technically sound souvenir photos, so I can remember places I visited, things I did etc.
So often I'm not waiting days for the perfect lighting conditions, the right hour of the day etc... I make do with what I have, that's why I think a wee bit DR more could help.
Looking forward to buying a used K-3 or K-3II (or K-1) as well...