For proprietary software, other than per-unit or tier/SaaS, what would be more viable? Artificial scarcity can only be exploited so far, especially with a highl

For proprietary software, other than per-unit or tier/SaaS, what would be more viable? Artificial scarcity can only be exploited so far, especially with a highly saturated sphere of competition. Now for free software, where there is zero marginal cost for redistribution and no information restrictions are enforced, there's some experimentation going on with quadratic base pledging (multiple people pledge a low base amount, e.g. 1c, and for each individual the base pledge times the number of pledgers is what is deducted). This is being done by Snowdrift.coop: https://snowdrift.coop/ https://snowdrift.coop/