Just a tad of math for you...
If you directly make $2.00 per day as a premium member, by fulfilling your checklist, that would be $0.20 cents per day bonus.
$0.20 per day bonus x 30 days = $6.00 per month
$6.00 bonus x 12 months = $72.00 per year bonus.
IF you do tasks OR offers OR both, it's mighty insane not to upgrade for the checklist bonus alone.
Granted, you may not make $2.00 per day every day.
Granted, you may even win clixgrid winnings.
There are things that come into play, either way.
In other words, there are days you would make less than $2 and there are days you would make more than $2.
Whichever the case may be, if you're an active member, upgrading is certainly going to pay off.