Quick and steady sales! LOL
If 2-3 of files already generating decent money, I go for long-sellable item as next release. If the residual income almost stopped, I go for Quickly selling concepts. This is one of the flexibilities we observe while making stock files!
But sales is not something easily predicatble before upload; in my personal experience, I had to make too many changes / improvements to the file after upload for longterm sales which I not even aware about at design phase, before upload.
From when Adobe acquired Macromedia, it is clear that their only vision is towards managing shareholders rather than art/engineering part of their products. It looks like those who makes major decisions on Adobe are completely disconnected from the actual industry they serve. Becoming too big has its own drawback, losing vision. Now it is time to see better variations of Photoshop from various brands.
I have CS5 still I will never upgrade to new releases as they are no longer be trusted. I think this is the best time for competitors to release Photoshop killer.
Thanks for sharing. I used to solve these situations in a crazy way; by filling a new layer at bottom with same size as canvas, link all the layers, drag them to new psd, snap the bottom layer to top-left (all together) and finally delete the bottom layer, phew!