@maguay It's not only Microsoft who uses this dirty trick. Practically every software reseller does this. Also Adobe and Parallels. Creative Cloud is already expensive in the US. But over here it's even pricier.
"Botnet operators in the criminal underground are launching large DDoS attacks against each other in a bid to knock out rivals in the race to compromise computers." http://www.itnews.com.au/News/382411,bot-masters-in-cut-throat-ddos-fight.aspx
@stefp I have a three-year old MacBook Pro here that I upgraded to Mavericks. Since the upgrade, performance has been awful at random times during the day. I also have 8GB of RAM so I can rule that one out.