I agree -- I would totally fly on a plane with uncomfortable seats but an engine that would get me from Tokyo to Seattle 40% faster.<p>And I am not saying the renderer doesn&#x27;t matter. My contention is just that the featureset and the UI probably matters more today, for most people. Historically, that wasn&#x27;t true. (I consider switching from IE &quot;historical&quot;. I don&#x27;t know anybody who uses MSIE today, except for one-off reason like accessing some legacy banking system.)