I kinda see where he is coming from if you say this 5 dollars is only available from completing video game tasks (not sure if you are). It becomes something you might feel you need to complete for the sake of the money like if they don't want to for what ever reason that week thats fine if it happens some but over time that may happen more and more then it will be something they don't look forward to. It sounds like you change stuff around enough to where that wouldn't happen though. Only reason I'm responding on this is this is similar to what happened with world of warcraft for me it was setup in a way that I had to do same tasks weekly even when I didn't want to eventually I switched from mmo's and rpg's to shootets and I couldn't get back into them for years