It is definitely more refined looking. And their stated goal of getting into the hands of people like me who design for a living. I could much more easily get my company to put that on my desktop than put a SD2 on my desktop since it looks like a polished piece of equipment. That goes a long way to the uninformed who are signing the PO. For my purposes of printing in my home. I was eyeballing the previous makerbot and trying to justify the $2000 price tag and just stumbled across solidoodle. The price point for solidoodle made it a no brainer for me, and I quickly ordered one.
One day in the not too distant future there are going to be 3d printers in the office of every engineering department, and makerbot is positioning themselves to be that printer. Once they prove the market and start making money at it, 3d systems won't be far behind, with a better product and much more money behind it. There is a window of opportunity to make money in this new marketplace, I can't fault Makerbot for jumping on it, even if it's a little immoral to cut everyone out of the process that has contributed thus far.
Apple is the richest company in the world by following a very similar business model. Take other peoples ideas and market them better than anyone else.