There hasn't been hundreds of thousands of windows exploits.
.
well, I don't know how you would classify Viruses, mal-ware, Extortion ware, spyware etc, but last I looked, there were over 100 variants of the Win-anti-virus 20xx. I call them all exploits and the last I heard that Norton labs had over 5 million of them in their testing labs. There was a You tube video by them a few years back stating they had them all "Contained" and running in their labs.
Now yes, I know Norton is a Virus in itself, but my God the swap thats out there for Window's users, it just boogles the mind, I wonder how anyone can surf the net anymore.