The cost of adding a feature isn't just the time it takes to code it. The cost also includes the addition of an obstacle to future expansion. The trick is to pick the features that don't fight each other.
“Commitment is a big part of what I am and what I believe. How committed are you to winning? How committed are you to being a good friend? To being trustworthy? To being successful? How committed are you to being a good father, a good teammate, a good role model? There's that moment every morning whe”