For those wondering (all imo and only best guess)<p>The biggest advantage of kafka is that all of the heroku marketplace all of a sudden becomes &quot;plug and play&quot;<p>Essentially it&#x27;s the &quot;backend data&quot; equivalent of what segment does for &quot;frontend data&quot;.<p>Example: What&#x27;s the benefit of having a graphDB service in the marketplace if most people dont want to &#x2F; cant invest engineering in keeping the data in (realtime) sync.<p>With kafka they can establish standards that all partners can adapt to, they will simply offer piping of all heroku postgres&#x2F;redis changes.