Maybe your idea for a membership site is to get people to come and partake of your exclusive products. They can be privy to content that gives them more than the content they can find on other sites for free. The content is also well-written and informative. You can also offer them eBooks or special reports on various topics that they can use for personal growth.
If your membership site is in the business of showing people how to go into business for themselves, you have another unique opportunity. Let's say that with their membership, they receive access to content and other resources that teach them the basics of starting their own business. You can leverage that content and create a variety of other informational resources that you can offer to those who would dare to purchase a higher membership.
Those products could be for the intermediate online businessperson. This person already has a business but wants to know how to increase their profits. To do that, they would need to view some of the free videos you have available for an upgrade in membership.
Better still, is the highest membership level that includes other perks. Each level of your membership needs to be more enticing and deliver greater products than the level before. The information at each level will be enough to get them started and make them want more. Even include previews of what they can gain access to with a higher level membership.
This is just one example of a multilevel membership. Depending on your topic you can offer a variety of different perks that increase as membership does. But, you have to be prepared to give what you promise. If you want to appeal to everyone from the novice to the expert, you have to have that level of expertise within yourself.
Don't forget your affiliate program. Performing well here can earn them an upgrade in membership for a certain amount of sales completed. For you, your traffic and membership increases. For the member, they earn a commission as an affiliate and get a better membership without paying a dime out of their pocket to do it.
Give your members something to strive for with a multilevel membership program. If you don't have one now, you can always implement such a program to keep your members motivated to stay with you.