I meant was that hackers build those things because they are familiar to them. Patrick had some interaction, somewhere, that led him to realize that people need bingo cards.
Ask the non-hackers in your life what little pieces of software they occasionally have a big enough desire for -- big enough they'd pick $30 at the time. Then tell me. :)
My auntie was telling me this weekend that she has to keep running Windows to keep an old Quilting application running. There are newer/cross-platform ones available but they can cost thousands and she doesn't want to change.
Ask the non-hackers in your life what little pieces of software they occasionally have a big enough desire for -- big enough they'd pick $30 at the time. Then tell me. :)