I consider all options, I just became a member of this site/forum and therefore my methods are unknown. To over simplify I will take advantage of all opportunities to reach my goal of a badass two speaker system. My goal is to have a one of a kind custom system that i built with my own two hands. I have found personally that I "horse Trade" until I get a strong foothold then I optimize until I'm happy. With that said, if I score a $40 ebay preamp then that is the starting point for that component. If I customize it and am happy with it, then it may last until I upgrade all the other components. Or fate may provide a better option. I have only seen a few options and other than matching it to the amp the general consensus is that a preamp, if functioning properly has little effect on the system. I still need one and I find it more enjoyable to upgrade throughout the process rather that holding out for a singular "Ultimate" component. So I am still considering which way to go. LOL