Perhaps because she realizes how much work it will be for her. If one uses many non-standard applications, changing platforms or even a clean install of an OS -

Perhaps because she realizes how much work it will be for her. If one uses many non-standard applications, changing platforms or even a clean install of an OS - Win, Mac, or Linux takes a lot of effort before one can get back to the productive work one bought the system to do. That is complicated by interoperability with auxiliary devices. Choice can be great but often comes with consequences that can be costly. Hmmm - isn't that really the message of Rachel's rant...