Seems like any post about starters has the same elements. High price starters, low priced starters and used starters but they all seem to work to the satisfaction of the poster. I'm beginning to think it doesn't really matter.
I've had both high and low priced starters in different race cars and they all worked just fine. I have a Powermaster XS starter ($$$), it works great and their customer service is the best I've ever experienced. I have also purchased 3 starters from DB Electric (Ebay $63, shipped). They are all over 8 years old and are still working in various cars. I am presently running a cheap starter on 16V. So far so good, but I do carry a spare.