Some of the opportunity in this niche is going to be referring people to luxury brands that have higher order values than we might see on Amazon. I can’t disclose the person or the site, but one of my colleagues is in one of these niches and reported significant revenue increases from testing other affiliate programs against Amazon–before Amazongeddon.
I eventually learned the best model (for me) was to copy what Yoast did… charge a flat free for SEO Audits. People were always super happy with my audits. I still have my SEO audit templates (one for local SEO, national SEO, etc). Sometimes it would only take me 4 hours to write an audit and I would get $750, sometimes more if they wanted a more thorough audit. Maybe I undercharged?
There are lots of Amazon affiliates in this space, mostly because it’s a strong hobby (i.e. passion) niche with tons of products. Which is good, since tons of these big stores are very general in nature, making it possible for big outdoors sites to possibly even pick one or two stores to recommend (this, in turn, might have other advantages, too, like negotiating better rates with those brands).
The amount of money you can make can depend greatly of you budget. If you have a small budget and you don´t have a lot of money, then you have to start with free marketing methods like article writing, blogging, forum marketing and such. It takes a lot more effort ant time to have success with these methods. But they are very effective if you keep writing articles and participate in forums. You can make $100 a day within just a few months just with article marketing.