I understand time. I've mentioned that plenty of times. So lets do math:
1 Chroma lets say takes 5 mins to photoshop (Being VERY generous on that time for shading and looks and everything have to be done...but whatever...)
1 Chroma x 5 mins = 5 mins labor
Each champ gets minimum of 3 chroma
So each champ Chroma = 15 mins labor
15 mins labor x 124 champs = 31 HOURS of labor. just to photoshop.
Now...in 31 hours of labor, I'm pretty sure someone in riot can come up with a skin, make up some mock drafts and submit to development. And that is LOW end.
Realistically, I think each chroma, to make it look right and shading and color scheme and to implement to PBE takes about 1 hour per chroma. could even be more. Which in math would be:
1 hour x 3 Chroma per champ = 3 hours per champ
3 hours x 124 champs = 372 HOURS of labor.
You can't tell me that in 372 hours (which is about 9.2 weeks of work assuming they work 40 hours a week), that they couldn't come up with 2-4 new skins. seriously. It's riot. Typically every month they are churning out at least 2-4 new skins anyway.
Now, from the looks of it, they are releasing for random skins, not just the classic of each champ. So I have a feeling that its going to spill over into Chroma's for other skins in each champ pool even FURTHER extending the labor for each...