I agree,
In addition, it usually varies between the different niches,
Although all together belong specifically to the Entertainment/Online Gambling industry;
Online casino, Online Poker, Sportsbook, Bingo, Etc. industries usually have different CPA value range in accordance to the average player cost & value.
While driving Casino traffic, can range from $75+/- per player, to a few hundreds,
Bingo traffic can sum up to less. again, its all in accordance to many factors, including the traffic volume, traffic orientation (SEO or not, and of which kind), and others..
:hattip: