for the vast majority of the Chinese people, over 90%, do not believe in the effectiveness of the rhino horns
So that's a target market of only 136 million?
with the exception of those living in the Hong Kong and surrounding region (mainly Guangzhou)
Oh, and they're only concentrated in one of the wealthiest areas? Definitely not a problem then.
How many times have you used Notepad/Wordpad instead of Word?
I use the Mac equivalent, TextEdit, quite often for jotting down quick notes and for quickly opening text files (including rich text and Word docs where I don't really care about the formatting). TextEdit is a very thin wrapper around the NSTextView class, and so is the same sort of not-quite-demo-app as WordPad, which is a thin wrapper around Microsoft's rich text editor control. I have Word, Pages, OpenOffice and LibreOffice installed, but I probably use TextEdit more than all of them combined, because for most simple things it just gets out of the way.
Tuition fees are also capped by the government (currently at £9K/year, which is a bit excessive. When I was a student the cap was £3K, which was a lot more reasonable. Unfortunately, the last government cut government funding at the same time that they put up the maximum requirement, effectively forcing most universities to raise their fees to £9K to keep the same per-student income. The Scottish and Welsh governments both pay the fees, so they really only apply to English students, which also causes a bit of friction).
Factorials were someone's attempt to make math LOOK exciting.