I understand your perspective, but consider it valid only if you have the ability to predict the future. My view is predicated on your having no way of knowing - today - if or how many times in the future you (or someone you know) will need that extractor. Of course, if you do know that, and with certainty, please PM me, as I have some lottery tickets to buy.
Otherwise, consider it an investment in future time, money, and hassle saved when the time comes that you need it again. Us tool queens are the way we are because past experience has informed us that the time will come, and when it does, we're strapped.