How sales tax exemptions can waste one's time

Recent litigation in Missouri over whether converting frozen dough into baked goods is "processing," such that the electricity used is exempt from sales tax, shows the time and money that can be wasted with pointless rules.  The solution is to not have businesses pay sales tax - instead, only have it paid by the final consumer (the same was a VAT works).  Please see my summary of the case and issues in this SalesTaxSupport.com post.