I'm a heavy LibreOffice and MS Office XP/2002 user. Office XP runs like stink on modern hardware, properly rapid. I've seen more improvements in LibreOffice in the previous 12 months than in 2-3 years of OpenOffice. LibreOffice Calc no longer crashes when trying to do their version of pivot tables but still needs some slight speed and stability improvements in charts. Writer is pretty much good to go for most document needs. Presenter needs some sort of multi-monitor presenter view. And a real Firefox style auto-update, which doesn't involve downloading the whole shebang, uninstalling, re-installing. Uninstalling/re-installing LibreOffice takes a worrying amount of time and disk thrashing!
If OpenOffice gets any of that sorted then I'm happy to switch but it seems they're already a year or so behind.
The problem that both face is that as far as most people buying new PCs are concerned, MS Office is it! They get a trial pre-loaded and they know it will open Word/Excel documents, sorted! They just don't know about LibreOffice/OpenOffice until they start using it at work or start poking around open source projects. And unfortunately it will likely stay that way whilst their friends/colleagues keep sending them docx/xlsx documents which gives the impression that only Word/Excel can open them.
So medium term, MS Office will remain. Long term though (maybe very long term!), I believe that open source will win. Quality of product will combine with low price (free) and be deployed in larger organisations, building brand awareness to hundreds/thousands of users. It will be a gradual process. So any line of code contributed to open source projects is better than a line of code contributed closed-source!
I can't see many enterprises choosing clunky cloud version wannabes and completely ditching local machine versions for many years. I use Google Docs for most family letters/spreadsheets etc to save me the headache of "where's the x document" questions. But the improvement in cloud office suites is pegged to the protocol/infrastructure that they're currently botched onto. Are there any open-source equivalents of Google Docs Writely/Spreadsheet out there at the moment? That would be a useful addition to several office intranet systems I maintain but never a replacement for a desktop office suite editing a 150MB presentation.
As a side rant, is there not a class action suit here somewhere? MS using their OS dominance to flog Office, like the whole IE thing? And whilst they're at it, Windows Media Player? And Apple with Safari, iTunes? Or is it now presumed to be just good business sense and that any private company would do exactly the same?