Originally Posted by Konda

It's proven that having several membership option is the best to get the most customers. It should be more than 2 and less than 5. When the customer feels like he has several options to choose from he is more likely to subscribe.

On adult sites having the $1 trial besides the full month price is because it's much easier to get people in. You will get a lot more signups compared to if you don't have this option and you will make more money in the long run by having this option despite a lot of the $1 trails canceling. It's a simple numbers game.

In addition most programs (used to) rely on affiliates and had to offer a PPS to get the affiliates to send traffic. So if you don't have the $1 trial the affiliates are not interested in sending traffic, because their ratios will suck compared to sites that offer do it. So for many it's also a must have because of that.

The 3, 6 or 12 month option is for the customers that have money and really want to join and see it as a much cheaper option.