Are there any such retailers? All I can think of is illegal black market online stuff. You're probably going to find a few if you start browsing the dark web lol.
These retiles are not really sufficient and the profit of the bitcoin will be high if the best source of the income will be applied for the increasing income of the bitcoin I am going to invest the high money I the bitcoin to get the good service for the increasing price of the bitcoin, I love to be the bitcoin user and the money through the bitcoin will give me the unstoppable profit indeed.
If for you, that is your strategy then its fine as long as you are profitting from it. But we all have different strategy and sometimes just having one income is not a smart strategy if you want to make more money. At least op is finding other coins which is maybe tough considering it is not in the hourly basis that altcoins price is changing. The only thing good about btc is it is always moving but altcoins can also be a big profit in a long term investment.