deni12 It's hard to generalize as there are successful and less successful videos and scripts.
If you know what you are doing you can get ROI on your video within a month. The rest is all profit. You can run quite a good strategy if you have a collection of videos rather than a single release.
Scripts for popular videos make more money than less popular. Some people make a bank on both. Both Premium and Scripts Premium budget is growing month over month.
Let me know if you would like to give videos or scripts a try