Really good analysis, but misses the most important element, that the incentives of the humans in the loop are not aligned with whats best for the company. The people who make purchasing decisions are all MBAs from top tier schools, the only reason they pay 100K - 200K for MBA is to become part of that network. Enterprises are infested with these MBAs. These people buy/sell software (and anything else) from each other. High dollar contracts means a bigger title, more compensation, promotions, etc. This is just human nature.