Do all the clixgrid clicks you are able to do. I know that you CAN earn BACK your investment if you buy the upgrade.
You receive MORE for your percentage rate on the daily bonus and that in itself helps earn you more even on the 1/10th cent ads that we get many during the day.
Do the math and you will see that you CAN EARN the investment back during the year and I do the clixgrid while watching a TV show, then I am surprised if I win something. Guess NOT paying attention to where I place the mouse to click helps win - who knows - mostly it is a game of chance, but when you click more, your chances of winning something go up as well. Since they started the clixgrid years ago, I just earned a little over $2 plus change. Not a winner of any big $5 yet - but, who knows, I may win a big money amount sometime.
Good Luck and just make sure to do something to get your bonus daily. 5% or 12% helps to add up at the end of the day after you've done your ads for the day and other items as well.