Earlier quoted context omitted.
Before Microsoft included decent compression facilities in Windows, a lot of people did in fact pay for WinZip. I bet some still do, considering it's still on sale -- something that cannot be said for most Linux distributions.
I highly doubt many people were paying for WinZip or WinRAR, given that they're a running gag in the IT sector (just like paying for Total Commander). But I'd love to see data on it, if anyone has some.
http://www.reddit.com/r/PaidForWinRAR
;-)