Say, in a particular field of science, method A or equipment B are the standard. Now I have invented method X or equipment Y which cost much less than A or B.
What are the necessary conditions, if any, that allow X and Y to be published as a journal paper?
(This question of course is loaded with my own assumption that originality in an academic research does not include cheaper price. I have long held this assumption from a simple fact that I have never encountered such thing as being cheaper being described in any background/introduction section in any journal articles I've read.)