Well, this depends. Sure, if you have like 15 sites up and running, all selling different things, you're bound to come across someone who will be interested in what you're trying to sell.
For me though, the website needs to be top notch in design, or I just won't trust them. There are so many scam websites that all have the same template and have awful use of colors and schemes. I avoid those at all costs. While it's better to have two decent sites than one professional one, just make sure your definition of decent won't be a turn off to the people that end up poking around.