Long term, your customer still doesn&#x27;t give a shit that your product is built on a bleeding edge javascript framework  (except if it has more bugs as a result). And salespeople are perfectly capable of grasping &quot;if we don&#x27;t fix this technical debt, it&#x27;ll be really difficult to do anything very much with the product in future&quot;. They&#x27;re just immune to &quot;look, open source, new architecture, shiny!&quot;<p>The salesperson is the one that says &quot;you&#x27;re not going replace horses with automobiles, <i>unless</i> they&#x27;re faster or more reliable than a horse&quot;.<p>As well as the one that says &quot;<i>don&#x27;t</i> make a faster aeroplane, make one with lower fuel burn instead&quot;