Yeah clearly this ui http://elliott.org/wp-content/uploads/IMG_6317.jpg required 10 days to design.
Why would this require more than a few days? Simple UI, then just generate a secure random number and draw an arrow. Bam. Give me 200k.
I mean the largest expense would almost certainly be third-party pen testing and QA. And why would it take a technical writer 5 days to document this? It has 1 function.