See if giving the visitor more control leads to better conversion (more conversion and higher quality ones.)
After the headline ask the visitor to click on one of the following sub-headlines. Each will show them the sales letter with its different parts (benefits, features, testimonials, etc.) in a different order on the page.
Collecting wine bottles like baseball cards or matchbooks.
Produce very small (50mm) wine bottles with many brands each year and offer specifically for people to collect.
It might lead to more income and better relationship with the customers.
Show cost of the online information product (making and marketing), how many you need to sell to make a profit, and how many already sold. Emphasize the smaller amount (first the amount sold, when the amount needed to turn a profit is near then show the amount still needed, and when the profit exists then show the profit.)
A way to generate more memorable experience for the buyer and more income for the store.
Have particular books paired with a print from an artist. The buyer of the book can get the print as well (for a discounted price) because it “goes” with the print and will enhance their experience.
It might be the clincher for the deal.
When advertising your online product or service, use the unconventional bonus of food (like special brownies, gourmet cheese, etc.) Unless you are already selling food online, and if food is very distant from your product, this might make a big difference.