Amazing Animation!
I understand what your saying Kannonball but I'm with Baz on this, I am in the same position as you, small business trying to deliver what the client expects. I think perhaps my clients are less media savvy than some. I am a perfectionist but I can't afford to let that stop me bashing out cad plans and a model and showing it to the client. I've tried 3DS Max, Vue, Kerkythea, Podium. I'm not great at rendering but my clients want me to design and model, they are not paying for rendering and wouldn't understand the concept. I'm never happy with the renders I've tried, it's too hit and miss for me. There is no way I will leave my computer idly rendering when I could be starting another job. The way I look at it, you introduce your clients to photorealism, you give them the idea that you might be able to achieve Pixar like results, you have raised the bar and you'll have to keep raising it. That's great but at the moment I can't factor in that time.
You have to ask the question, is rendering intrinsic to good design?