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a. Lots of articles, content, with an affiliate store that requires a fair amount of maintenance.
b. An affiliate store you can launch in 15 minutes that requires no maintenance.
I'm particularly interested in hearing from people who have tried both.
In general, with content and articles, you can get people to fill out surveys and submit emails (to HELP make your site even better)... this can lead to follow ups and more sales. It is better but much more work... but better. :)
Having something fast to put up at least gets the ball rolling, then you can add to it as time and interest allow.