Forces of Change
The Endowment Effect
The tendency to overvalue things we already own or use, making switching feel like a loss.
The endowment effect means users value their current workflow, data, and muscle memory more than an outsider would. A spreadsheet that took two weeks to build feels irreplaceable to the user who built it, even if a new tool could replace it in five minutes. This overvaluation is a powerful Habit force. Product teams that ignore the endowment effect design migration paths that feel like confiscation. Teams that respect it design migration paths that preserve the user's investment.