1. Give your potential customers a bonus that will actually pay for their purchase. It could be money saving coupons, an affiliate program, etc.
2. Sell a lead in product for super cheap, even if you loose a little money. If people like it, you have a greater chance to sell your higher price product.
3. Give people a free version of your product. If it does what you say they, will pay for up-grade or deluxe version to get more benefits.
4. Ask your visitors outcome questions in your ad copy like: "Where do you want to be financially next two years?" This'll persuade them to buy.
5. Give your product away for free to people that will agree to influence your target audience to buy it. It could be experts, famous athletes, actors, etc.