If you can do your own demolition and installation of the new floor, it will not cost you all that much more than paying someone else to refinish those old floors. I would think a finisher would charge extra to scrape those bevels. I know I would. BTW, I just looked at what those floors cost and wow, your right, they are beautiful but pricey.
http://www.hardwoodinstaller.com/hardwo ... -solid.htm
So, I guess it would be cheaper to have those old floors refinished but are you really going to like the way it looks? Personaly, I think I'd save up for the new flooring instead and try to install it yourselves if possible.