Steve Jobs rule 4 should come in here somewhere.

I agree, the first software produced is just a proof of concept and will be re-written. I even believe the only way to write good code is to build it fast in some intransitive language and then throw it away and do it over in something compiled.

So I agree with this post except, to become great, you need to know upfront you are just proving the idea and you will do Technical Diligence of the final product and NOT SELL CRAP.