Liran Hirschkorn has been marketing online for 12 years. After growing and selling an Internet life insurance agency in 2014, Liran decided to get involved in e-commerce and selling on Amazon and has since sold millions of dollars on Amazon. Liran is widely followed as a thought leader and speaker on marketing and selling on Amazon. He lives in Long Island, New York with his wife and daughter, and awkwardly wrote this very bio in 3rd person. Liran is a big believer that success in life is not just in business, but in all areas and is grateful for the opportunity to make an impact in this world.
In my mind, private label and building your own brand/nich products is the way to scale on Amazon.
Because single users can use it for free with some restrictions (like only 1 chat at a time).
You may want to consider a dropship business where you don't need to buy inventory at all and have suppliers shipping directly to your end customer.
From what I've seen under $1 per like is good, but you can get as low as 20 to 30 cents in a really well targeted campaign.