Speaking strictly in terms of money... How much would you pay for a license? $65? So what does that work out to if we release an upgrade every 2 - 2.5 years? About $30 / yr, right? That is about what a subscription costs as well, but the subscription includes access to the apps on all platforms, as well as other features not available with a license. For most people, especially 1Password Families customers, the subscription option is going to be less expensive. This is a reflection of the amount of support required on average by license customers vs subscription customers.
Ben Woodruff
AgileBits