"You can certainly work around that running a VM environment so that older documents can be accessed and worked with older applications." - or I could just keep on using LibreOffice and not have to bother with VMs, and be able to read/edit/create office documents and share them with anyone regardless of what their platform is. Even MSOffice has a Mac version, and MS are working on Linux versions. It only took MS a few decades, but they've woken up to realise cross platform is essential for growth. Apple is still in its shell of denial.