How do i know?
Do you know how many Who's who of IM legend who constantly buy programs i release in IM niche? These are the guys who releases products that is worth $997- $1997
(in fact, if you keep an eye on your customer, you might have a few too)
i am not bragging that i got good customers, but i am just respecting these guys will to learn from the smaller frys like me. Definately this is what that keeps them at top of the mountain.