One reason is because it's sorta fun.
The other is because I believe it to be a necessary skill,,,
If not necessary I consider it a desirable skill.
I mostly carry mouse-guns or a J-frame snub-nose .38,,,
The sights on them are terrible to say the least,,,
So I practice shooting quickly without aiming.
It doesn't take long to build up a good amount of proficiency,,,
And I do firmly believe it's a worthwhile endeavor.
And let's not forget we may also practice our James Bond pose as well.
Aarond