I was doing some searching around on the internet, and saw some interesting posts on the multimaster here. I saw a number of people complain about the cost on the blades/attachments. Upon more internet searching, I found this:
That seems like a crazy deal, I called the store to see if they would ship blades and they said no problem. Just thought I would pass it along, as it seems to be a great way to get some blades at a less expensive price, seeing as how ridiculous the cost on them is.