In a more pragmatic sense people seldom realize the amount of work and time involved in creating high definition individual 3D mesh objects and how prohibitive it can be within time constraints. Sometimes even a relatively small render can become a huge undertaking and a large artistic endeavor can take months if not years of God playing to get it modeled just right. How prolific can one then be?

Even if you have the skill and talent to create your own you may not have the time and ambition required to populate a scene yourself. Would it not therefore make practical sense to buy or barrow models to fill that requirement? This would be tantamount to hiring live models and renting props for a photographic shoot.

And if you build your own models and props would you not save and reuse those same models and props for future scenes or would you simply discard them only to start remodeling over again? And if you reused them again in a different art piece would that production be less artful?