I thought the same way too, but when you think about it, Apple gives you 90 days of free phone support and a year warranty.
I'm going to buy AppleCare for it and the money I saved from buying a refurb is gonna cover that. All in All, I gotta pB with maxed out RAM and AppleCare for less then $2000. To me, that's a good deal.
If it's your first Mac, buy new, and be done with it. If you wanna save some money go refurb. Hope this helps... 😀