Sod installation provides an instant lawn with immediate curb appeal, offering quick erosion control and usability within 2-3 weeks of installation, though it comes at a significantly higher cost compared to seeding (typically 4-5 times more expensive) and requires immediate heavy watering for establishment. The advantages include weed-free initial growth, the ability to install during more flexible time frames throughout the growing season, and the option to use the lawn sooner; however, sod can suffer from installation seams, may have difficulty rooting if not properly installed, and is limited to the grass varieties available from local sod farms. While seeding offers more grass variety choices and develops deeper root systems at a lower cost, sod's immediate results and professional appearance make it an attractive option for homeowners who want an instant lawn and are willing to pay the premium price for convenience.