I agree with Elizabeth that there's no financial advantage in making your own since you're paying the price of the single components rather than what they would cost a commercial maker in bulk.
What makes building them yourself attractive is the enjoyment of doing it and/or having done it. I've made most of my power and interconnect cables and am glad I did, but not because I saved any money.
What makes building them yourself attractive is the enjoyment of doing it and/or having done it. I've made most of my power and interconnect cables and am glad I did, but not because I saved any money.