It's not entirely true, while CPC and CPA* ads have been getting more popular over time, CPM is still the best way to go for many other purposes. Not everyone

It's not entirely true, while CPC and CPA* ads have been getting more popular over time, CPM is still the best way to go for many other purposes. Not everyone cares about getting people to click through to a landing page, lots of advertising is just about increasing the value of your brand, and if you want to reach as many people as possible you might not care whether they engage or not. * Cost per click, action or mille