The problem is that the finger prick actually hurts a lot more than a traditional venous draw.  There aren&#x27;t any real benefits to a &quot;finger prick&quot; other than marketing spin that it&#x27;s so easy breezy and good for people who can&#x27;t stand needles.<p>imo if Theranos had stayed out of microfluidics and stuck with fundamentals of testing but done it well- regular draws but used the best trained phlebotomists who can find the vein on the first stick, do a painless draw and really improved their model of &quot;easy access&quot; walk in Walgreens testing, immediate&#x2F;fast under 24 hour results, pay up front and low cost, they could have overtaken Quest and Labcorp just by exploiting inefficiencies in that market.  Instead they got too sidetracked focusing on razzle dazzle nanotainer microfluidic science that doesn&#x27;t even work.