There are a whole bunch of reasons why I'm not looking at the Windows video editors - but the simplest ones are:
* Linux is my primary desktop environment (and has been since the late 90s). I can use Windows, and am perfectly comfortable doing so, but switching to it means dropping out of what I'm currently doing and rebooting, which is a pain I'd rather avoid.
* Video is not my life. I only occasionally want to do anything with video - usually as a project with my daughter. Kdenlive works pretty well (apart from the crashes) but the infrequency of my usage makes it very hard to justify spending money on a commercial solution - even without adding the annoyance of switching to Windows to actually use it.
To add to that, I have in fact tried demos of some of the more popular entry level Windows based video editors, and none of them in the ~$100 range were really all that great. Maybe the $500+ range has some truly brilliant software, but again, I'll never know because it's not worth it to me. (And I do spend money when I'm going to get value from it, but Music is my real hobby, so Sonar Producer and various Softsynths are where my commercial software dollars go)