Update:
230 clicks, 15 ordered items (+1 on UK Amazon), $50 commission all together.
Need to ship 9.3 items per day to reach 7.5 commission level. There are still 20 not-yet-shipped items, so I believe I can get there.
As you all know, Amazon compensation plan is progressive.
More items you sell, more commission you get. If you sell products that are really worth something ($500+), stepping up in commission rate is crucial for getting the most out of it. But there's 1 problem: The more product costs, less conversions you will get, it's as simple as that.
People think twice before buying a $500 product because they want to choose the best product possible and there is a big chance they will check out several sites before buying something expensive. Even if they decide instantly, Amazon cookie only lasts 24 hours, so conversions on more expensive products are logically not as good.
Amazon doesn't care which products you are selling, for leveling up in commission rate, you need to sell more of them. Doesn't matter if it's a pencil or a $100k TV.
My Site B is doing just that. Products are cheap and niche is easy. Site didn't make much, but it sold 130 products. Selling 130 products gets you to 7% commission level.
Let's say you sold 5 products worth $1000 each in 1 month. That is $200 of commission in total. If you have a backup site which sells 130 products (even if products are really cheap and commissions are low), $200 rises to $350.
I took my time yesterday to find 3 more niches that are similar to my Site B - cheap products, easy to rank, very unknown, massive number of sales. I will buy appropriate domains very soon and I will repeat the whole process which takes no more than 4-5 hours for each site, including building links and writing content. Only problem is that it will take 3 months to rank them. 4 smaller sites like that should reach 8% commission level by themselves and that really is something to increase commission on other sites which sell products from $100 on.
I got shitloads of plans for the future, it will all start happening when I reach $3000 in 1 month through Amazon. It's my obsession right now.