I don't see the age caused decline like some do. My best seller since I started are still best seller. When I get a new good seller, they keep selling.

Some other pictures may have had a few sales early and less or none now, but it's not just age, I think that better photos and more competition are the cause. My better and different shots still sell.

Quote from: Zero Talent on October 18, 2017, 11:47

Good poll and hopefully more than 11 will participate to gather some decent stats.

One comment: I don't believe the linear extrapolation assumption is working in this case. Increasing the number of photos will not lead to an equivalent linear increase in revenues.
In my opinion, the revenue vs number of photo ratio slowly tappers off (logarithmic?), since the bulk of the revenue comes from a small percentage of very good photos based on a specific style or inspiration, often difficult to replicate and sustain in a factory like production.

Increasing the production will probably add photos at the end of the RPI tail, while very a tiny fraction will fall among the big earners able to drive the totals up.

In other words, beyond a certain threshold, where the logarithmic and the linear models overlap (a few hundred photos?) one might have to quadruple the number of photos only to double the revenue. The bigger the port, the more difficult it becomes to increase revenue.
The relation might look like the graph below.

Yes agree. And that's where the micro model isn't viable for most people who either don't live in lower cost areas or have an image factory. RPIPM usually decreases as you produce more images. When you start, it's not hard to quadruple 100 images. When you get to 1,000 images quadrupling is more of a challenge. When you get to 10,000 images unless you have an image factory it's unlike you're going to be able to produce 20-40,000 images by yourself. You've hit the image production ceiling and revenue starts dropping.

Correct. You can't double your port size forever, because there are only 24h in a day.
Exponential port growth is impossible, once one has reached a certain port size.

What I'm saying is coming from a slightly different angle. Even if by some miracle one can manage to sustain an exponential growth, the revenue will never follow the same trend.
Or in other words, even if you grow your port with, let's say, only 10%, (maybe still feasible for many), the revenue will grow with less than that.
On top of this model, we can also add the asset depreciation factor, already mentioned above, making revenue growth even harder.

i am a contributor for 2 months with 400 images and i make 0.014$ per image per month so 0.16$per image per year.i guess i suck big time!!