These kind of businesses are very good diversification for a portfolio builder. While they are not nearly as hands off as an Adsense or Amazon affiliate business, they offer a unique set of benefits to a portfolio builder. For one, they aren’t reliant on any program. You will never have to worry about Adsense or Amazon banning your account, because it is a product you own from start to finish. It also allows you to split test the entire sales funnel, unlike an Amazon FBA business where you are again adherent to Amazon’s policies.
