Performance. The best is often times the least expensive way to go.
Here's an example:
I purchase tooling for a small machine shop. We use a crap load of 1/2" roughing end mills. (sorry for the technical jargon
) A couple of weeks ago, I bought some end mills that were about $30 each as opposed to the ones I usually buy, which are $47 each. The owner of the company suggested that I buy the cheaper ones, hoping to save a few $$. I understand that completely.
Anyway, we broke three cheapo end mills in an 18 hour period over the weekend. The more expensive ones usually last 50-60 hours, sometimes a lot longer. Do the math.
I ordered the more expensive ones today. Lesson learned, by both of us.
Jim