Just to throw another fly in the ointment, my local salesguy called me and has a client who wants to sell his E90, 2011 11k, Jerez Black/Bamboo with DCT, Prem, Tech, 19", Sat, Anti-theft and CF interior, original MSRP 70k, warranty until 8/2014. He says it's really clean, well maintained. Initial asking price around about $2k more than the new one I'm looking at with MSRP $64k.
For that same price, I'm thinking the new one is a better deal, but at $5k less it might be worth considering. Almost 1 1/2 years less in warranty and maintenance and will probably need tires soon I figure.