I question _conversion_ though. Sure, the first ad had a lower CTR, but if you click on it, you almost certainly know what you're getting. With the second it's

I question _conversion_ though. Sure, the first ad had a lower CTR, but if you click on it, you almost certainly know what you're getting. With the second it's very much "Haha, I wonder what this stupid ad goes to?" and then you just abandon it. CTR means nothing without a conversion of some sort on the other side.