For the Product Configurators, I had to manage in Photoshop thousands of images; the automation offered by Actions was far from what I needed, so I chose the way of scripting in JS. The hole process can be summarized as follows:

 

- reading data from a database IN Photoshop;

- use those infos to modify images, comparing dynamically the images with the tables;

- update the data tables FROM Photoshop.

 

After this, I began to use scripts for most of the thigs I had to automate, since it happens quite often to manage big groups of images...