There's a lot of different things that go into the value of a click.....
Would you rather have 25 four cent clicks or seven clicks worth eighty nine cents each?
Nutmeg, the answer to the question is obvious. :)
I'll make a long story short but after my site was moved into WordPress over a year ago my CTR and income almost dropped in half. I kind of went into a panic.
Having to hire people to do back-end work on my site, I spent a lot
of time and money trying to get income back to at least the level it was before the move. I concentrated on simplifying the design, color scheme and improving navigation and page load time.
A paid consultant recommended a few changes to AdSense placement, colors and size.
Following the changes CTR ever gradually increased, but it has never again climbed to the level it was before the move. However, the last six months income is improving and, on average, it is close to double what it was the same time last year (and slightly higher than before the move).
I just could never really figure out how income could increase without a corresponding increase in clicks.
Maybe it's something you just can't figure out. In any case, your information is very helpful. Thank you.