As a result of the work on my project during the web analytics course, I can say that I have saved about 50$ on advertising only in the last week having cut off 2 inefficient sources. What if we sum it up for a year?
This would be 50 * 52 = 2 600 USD saved in a year.
If you see Roman, just grab him and run away with him, whether it would be his speeches or seminars. Roman is always a good deal.