These things get used all the time --- especially when statistical, economic or engineering analysis is being performed. Also, most users aren't using these fea

These things get used all the time --- especially when statistical, economic or engineering analysis is being performed. Also, most users aren't using these features directly, they're using a template created by someone who did know how to use them. Most of what the end user does is punch in this years data and interpret the output. For a specific example: unless LibreOffice or Google Sheets develops a solid equivalent to the Solver add-in, replacing Excel will be a non-starter in any department that deals with Engineering data.