Is life more satisfying as an atheist or religionist?

[Thumpalumpacus]

So one might say that modern religious art is driven not by spirituality but by money? 

This is probably true of religious cultural products aimed at a large market. It's hard to know how sincere people are who make Hollywood-style movies like "God's Not Dead." I'm sure they're happy to make lots of money. 

I've heard there is a genre called "Christian rock" that sells pretty well, but I know nothing about it.

If we take the term "modern religious art" more broadly, I'm sure there are lots of sincere religious people making art. Or performing music. Or designing buildings. They tend not to be on the radar for a general audience. 

Why would someone inspired by your god care at all about markets and so forth?

emphasis added

As I've told you before, I am not a believer. On this thread I have written about the history of what artists are like. I have made no assertions concerning a god or gods.

Real art doesn't worry about things like market. Real art happens because to the artist it must happen. Once you're worrying about markets, it's not art, it's a commodity.

This has been a popular view of art since the Romantics. So, late 18th century to present. 

It is made somewhat problematic by the fact that a lot of this real art is seen in special stores called "galleries" with price tags on. 

For most of history (the Renaissance, for example) art was usually commissioned by rich people. They paid for it. Since the person or church who ordered the art, as well as the person who made it, were probably passionate about the subject, I see no reason why this financial arrangement is necessarily a sign of insincerity. 

Though it wasn't originally made as a commodity (that is, as something for sale) art objects were frequently bought and sold when their original owners died or went bankrupt. The fact that there is so much great art in Britain today has mostly to do with the Spanish economy going bust. 

So the line between "real art" and "commodity" is probably not a very solid one. 

Though in the communist paradise we dream of, each work of art would be given to the person who loves it the most.

All fair critique. I only opine as someone who writes prose and poetry, composes music, and in the past has won a scholarship for visual art.