I can't speak for them, but it's all about diversification.... making amazon niche sites 1 part of your income.... dealdotcom wont always be around... clickbank niether.... places come and go... If he made $87/day every day, he'd almost be making what i make at my job... I've calculated and $12/day would pay for my brand new car.... That's my current goal... but i am JUST now starting with internet marketing. Having multiple income streams is the key.... make money from cj, dealdotcom, clickbank, adsense, amazon, ebay, etc.... cuz if one has bad days, etc etc.... you have others waiting.
Im starting my amazon affiliate store tonight with a really great keyword niche...best of luck everyone.
I'm only managing to get 3-4 sales with my Hubs (which are only great with adsense) so I will start my amazon store soon.