I&#x27;m not particularly fan of this or similar practices because A) it&#x27;s a bit morally grey to say the least, and B) you&#x27;re not actually testing a business idea, you&#x27;re simply testing how a product sounds.<p>A half decent example is Evernote (recent financial troubles aside). Imagine trying to cook up a super quick landing page  for Evernote and then buying some adwords. I&#x27;m pretty sure you wouldn&#x27;t get very far because who wants &quot;Notetaking App #784&quot; (which is about all the information you can give in such circumstances)?<p>Based on that you&#x27;d assume no one wants to pay for&#x2F;download a note-taking app. Of course this is provably false as many people pay for myriad note-taking apps. Where&#x27;s the discrepancy?<p>When you land on a products landing page there&#x27;s far more than just product screenshots. There&#x27;s also the impression created by the brand, one you&#x27;ve probably heard of before you got there. There&#x27;s customer reviews, there&#x27;s well thought out pricing designed to make you pay exactly what you can afford, there&#x27;s a thousand techniques used to make sure they get the sale.<p>Effectively, I&#x27;d say it&#x27;s very difficult to distill all this down into a quick experiment that proves anything.