I'm stuck in the $600-$700 a month range at the moment
...... trying to get to $2000 a month.
I think in terms of your question - Amazon should be part of every marketers sites - simply because of the name and they pay. I've been in CPA networks where they just shut you down or take you off an offer etc and it sucks - but with Amazon you know your money is coming the last wednesday of the month.
Probably shouldn't be the only thing you do - but yeah get involved and figure out what works for you.
Good Luck
WOW thats good....I cant make any money over there...and godaddy affiliate is not much better.