Architectural animation is not necessarily the ambition of most small computer rendering firms because of the man hours and computer time that is required to create so many single still images. Although, due to the rapid improvements in software and rendering engines it is going to very prevalent in future.
Architectural animation may not be the primary objective for most small computer rendering firms due to the considerable time and computational resources required to generate numerous individual static images. Nonetheless, advancements in software and rendering engines will likely make it a more prevalent application in the future.