&gt; Reducing infrastructure waste at small scale seems pointless to me<p>Agreed. I think what it avoids though is setting up ansible + puppet + firewall + updates + monitoring + blah blah stuff you do to secure and dev-ops a prod app (for a baby app).<p>You can half-arse this stuff in a day for a new company. I assume the defaults of lambda will be a little more secure... but amazon security is pretty complicated to set up right, so not totally sure what the max win will be.