Hello. I've been involved in Internet Marketing for the last several years but have really jumped into affiliate marketing in the last two.
In my earlier foray, I was an eBay Powerseller for a couple years. I found that you can make decent money on eBay, but there's a whole lot of ongoing work. With affiliate marketing, you don't have to worry about purchasing, storing, or shipping items, nor do you have to deal with collections or returns. These, along with increasing listing fees, all plague the eBay sellers.
Interestingly, many of the skills I learned on eBay translate directly into the affiliate marketing world. You have to know your customer and be able to relate your product to their needs. You also need to be able to find hot niches while they're hot (or at least figure out what's hot about your niche). Finally, you need to have a good understanding of your competition and the market in general.
I don't have my own product (yet), but I'm interested in the process of creating one.