As a person who has never owned a Sony console... I'm still not interested enough to buy the PS4. With the XBOX and PlayStation platforms moving to x86 processors, it pretty much makes them a PC with a custom UI but all on one PCB. Because of this, expect hackers and modders to make the PS4 and XBOX software bootable on a PC with ease.
Like others, mothion controls have no interest to me outside of the Wii and Wii U. I had hoped to see MMO's mentioned for the PS4 but Sony disappointed me there. DCUO runs well on the PS3 but it should actually look decent on the PS4. STO is something I think could easily be ported to a console and should be. This would definitely help expand the playerbase. Games is another issue. None of Sony's platforms have had enough games I have been interested in to make me purchase one of their consoles. The only game they showed a trailer for at the event that caught my attention was....
Drive Club. It may look all ice and everything but I kno there will be a Forza game that will rival it.
I will wait to see what Microsoft has to say in the coming months about the new XBOX. I can't see me buying either though due to the x86 base for the new consoles and Steam Box basically mean everything other than exclusives will be on all platforms.