Arien nearly sums it up perfectly.  Actually, the Einsteinian equation is:

Money = Time

The more lucrative, the more time and resources to be employed in the endeavor.  The less lucrative, the better the quicker skadoo.

As noted, if you're getting $10 for a 'full production render image' - how much time and effort are you really going to invest?  I make $10/hr picking my nose (sorry for the noxious graphic) and typing with the other hand.  For $20/hr, I might actually use both hands...

C makes it easy to shoot yourself in the foot. C++ makes it harder, but when you do, you blow your whole leg off.

 -- Bjarne Stroustrup

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