As much I have reservations about Google, I would not like to ive up my Nexus 10. It is an excellent e-reader (for me) and media (mainly film). Moreover, it is also an excellent reference machine for me.
Reference machine? Well, I put a lot of my reference materials - which are in either PDF and/ or ePUB formats - on it, which I use when working on the RT. Of course, I also use the RT for a lot of my reading and online work.
I can't see myself getting the Pro in the foreseeable future. But then again, a lesson I have learnt is - never say never!