Yes. Bitcoin is successful in business. bitcoin business is growing every day. Many new people invest it. So it is popular now. When prices decrease, they are bought and hold. When the price goes up, so they are many improvements.
I think to make business a success, you have to be a professional, need to be dedicated to your site, service, just this way you will achieve your goals.
I do not understand what you say. But a successful business bitcoin is a casino. Some of them only allow bitcoins and they make a nice profit letting players gamble anonymously, both for those living in countries where gambling is banned.