The primary advantage of using agile methodologies in tech projects is their emphasis on flexibility and responsiveness to change. Agile promotes iterative development, allowing teams to quickly adapt to evolving requirements and user feedback. By breaking projects into smaller sprints, stakeholders can review progress frequently and make adjustments as needed. This approach enhances collaboration among team members and encourages continuous improvement, ultimately leading to higher quality products that better meet user needs. Agile methodologies also foster a culture of accountability and transparency, as team members are actively involved in the development process.