I have been all over the internet on cooking and chefs forums, and the consensus is that the new Whirlpool kitchenaid mixers are not up to the standard of the old Hobart kitchenaid mixers.
For example on kitchenaid's own forum there are lots of complaints regarding quality: http://forum.kitchenaid.com/forums/t...p?TOPIC_ID=807
See also: http://forum.kitchenaid.com/forums/t...p?TOPIC_ID=677
If I needed a new mixer, I would rather take my chance going with a Ebay auction with a seller with a decent reputation/feedback, and buying a good Hobart Kitchenaid. Even if the mixer needed some repairs down the line, the Hobart service people can fix it like new, and you will have a better machine than the new kitchenaids, and for less money.