Here is an excellent article about why many of us, including me are happy to be using a Surface RT and we are not thinking about switching them for the PRO version officially coming in February.
The Surface PRO is just a Tablet PC! We have Tablet PCs since 2002 and they always have been a product for a very small portion of the market. Why somebody at Microsoft has decided that after more than 10 years in the market this is going to be the next Microsoft winner product? Because now for the first time is made by Microsoft?