Unless you alienate most of them because of your hard head.

Thinking of cost like this is very shallow

The post is not doing any favours and it is not convincing anybody to apply to the position, quite the contrary

And guess what, your company is not the shining star that has to make absolute sure to never have a bad hire. Sure, take the low-hanging fruit as early in the process as possible, but up to a certain point, more interviews won't mean better results