I entirely agree. I'm amazed how readily people - even RISC OS advocates - buy and use Windows when there are better alternatives available.
Perhaps - just perhaps - a ROX-based Linux might be more appealing.
A side issue that's occurred to me is that Microsoft's FUD bluster about Linux desktops and OpenOffice infringing ~250 MS patents seems very likely to me to refer to the many Windows-like controls implemented by the leading Linux desktops: task bars, launch menus, Explorer-like file browsers, file-selector file open & save dialogs and so on. A less Windows-like and more RISC OS-like Linux desktop would, I suspect, infringe far fewer of these patents and thus be safer from MS threats.