Market like photo licensing should be small enough to become monopoly (to maximize profit margin). Why people around the world still involve in this market and get profit though there are gettyimage/istockphoto which essentially dominate the market.

Could you please re-phrase your second sentence? I am having a hard time figuring out what you mean to say.

(I only speak one language, so I have a lot of respect for your talent and don't mean any insult.)

My interpretation of the second sentence: With a space that is heavily dominated by getty/istock, why do these companies enter the market in the first place and how do they manage to make a profit?

[edit]: On second thought, perhaps he is talking about photographers. Asking why they bother selling their pictures on any site other than getty/istock since they get all the eyeballs.

Oh, sorry for my poor expression. I do mean the first interpretation (why do these companies ....). But the second one is a good question too.

Profitable in this context being defined as what?

Maybe that means it makes more money than it costs.

You know . . . "profitable".

The issue is the costs, as always. Are they fully loading their salary and overhead costs?

Of course, I have crazy love for niche online marketplaces like this, so I congratulate them for seeing the competition and doing it anyway.