License purchase vs. annual subscription — which should I pick?

Buying the license is a one-time upfront payment with year 1 of Full Serve included. From year 2 onward you pay Full Serve each year ($199/yr) to keep the software running. A subscription bundles the license and Full Serve into one yearly fee. Subscribe if you want predictable yearly costs; buy the license up front if you prefer a one-time payment.