Most licensing is done on a per-seat basis for existing solutions. Additonally, the firms capable of swallowing the initial capital cost tend to be quite large and segmented into multiple divisions, e.g. Boeing or General Electric. Different divisions have different priorities within the company, different operating budgets, etc. Often a division's revenue won't be enough to justify the investment.
Most licensing is done on a per-seat basis for existing solutions. Additonally, the firms capable of swallowing the initial capital cost tend to be quite large and segmented into multiple divisions, e.g. Boeing or General Electric. Different divisions have different priorities within the company, different operating budgets, etc. Often a division's revenue won't be enough to justify the investment.