Ultimately we need to make nodes super simple to set up and maintain with the click of a button. That's the vision...
With 6926 nodes and a estimated earning of 0.0369 ZEN/day, That works out to $41.84 a month gross. Subtract the $10 per month for the VPS because zend needs 2gig of ram to run. I might make $31 this month providing I don't get anymore "challenge exceed the max run time".
I am convinced that the nodes are simple enough, if not too simple. There are already 6925 other people that have figured it out.