Micorost is making way for a new Surface RT by cutting the price of the current model. Should you buy it? Probably not. For advisors, being able to run th full Office Suite is important so probably want the Surface Pro, which is the more expensive model.
Microsoft recently said it was doubling the available solid state hard drive on the Surface Pro from 128Gb to 256GB, which is the entry level model that advisors should consider and costs about $1200. It will run just about all of the apps most advisors need and it repalces an iPad as well as your current laptop or desktop.
Surface RT won't give advisors much more than a tablet.