some questions are a bit weird. i've been using macs all my life, so its hardly a result of friend's recommendations or advertising. and i installed windows because i wanted to see what it is like, but i erased the partition a week after installation. none of the responses were appropriate, so i ticked not installing windows.
... and it's only a 15 question response. It seems silly to jump to different questions.. especially if you own more than one computer. btw, why did you single out MacBooks in particular for installing windows on?