I am all for Adagio carrying Matcha. I first found out about this tea during a lecture by one of my former college professors (a Chemistry professor) who was doing a study on the varying chemicals and their levels in teas. Chemicals like EGCG and caffeine, just to give two examples. Matcha proved to have the highest concentration of proven beneficial chemicals, in all likelihood due to the fact that rather than having an infusion, you are drinking the actual powdered tea leaves.
As a side note, it also proved to be highest in caffeine - and his entire student research team abandoned their morning coffee in favor of Matcha.
Please Adagio, start carrying Matcha!