>> What's so great about MS Office that LibreOffice can't do??

> Work with spreadsheets more complicated than two cells.

I use both daily. You're misrepresenting what LibreOffice can do; 99% of the people I see using excel are using the exact same 20% of its capabilities.

Quick-n-Dirty database that they can update during sales meetings and create charts from. You think another spreadsheet can't do that?