You will make an excellent passive income for as long as you want in this line of work. In fact, you will even make money on your old blog posts written years ago, depending on the quality and relevance of your content. Your business will always stay open, and you will have cash flowing into your bank account 24 hours a day, 7 days a week, even when you’re asleep or off on a vacation.
If your domain is your address, hosting is like the actual house within which your site will live. It's your own little slice of the internet — the place where all your website files live. Hosting is very affordable these days, so don't unnecessarily scrimp on costs. Go with a reputable, reliable provider because your affiliate marketing business depends on it.