An interview with MSI Director of US Sales Andy Tung over at Laptop Mag contains a snip Microsoft will be happy to hear. Tung mentions that the return rate of netbooks is pretty high, mainly because people don't want to learn how to work with Linux.
According to studies by MSI, netbooks with Linux have a four times higher return rate than netbooks with Windows XP:
We have done a lot of studies on the return rates and haven’t really talked about it much until now. Our internal research has shown that the return of netbooks is higher than regular notebooks, but the main cause of that is Linux. People would love to pay $299 or $399 but they don’t know what they get until they open the box. They start playing around with Linux and start realizing that it’s not what they are used to. They don’t want to spend time to learn it so they bring it back to the store. The return rate is at least four times higher for Linux netbooks than Windows XP netbooks.