Our company is concerned by the announcement to move to a subscription-based Vectorworks model. In addition to the modified cash-flow arrangement that we are not accustomed to, we fear that the increased frequency of updates could potentially have an adverse effect on staff productivity, so for our firm - it's cause for alarm.
Given the time it takes to migrate custom tools, then update our project teams and migrate files with each new annual version, and the potential for breaking tools, or introducing new bugs and problems into important project files - we generally don't update our version of Vectorworks once a project achieves the critical Construction Drawing stage (unless that version of Vectorworks is particularly buggy). These files are our bread and butter, so, although we subscribe to Vectorworks Service Select, we generally do not install each new version of the software that we are entitled to. Once a project is in this mission-critical stage and the workflow is stable - we tend to avoid disrupting it by adding new software - until that project is complete.
We hope that Vectorworks will continue to offer a purchase-to-own stream for long term customers, such as ourselves.