We find that students tend to do better in a dedicated learning environment where they are not distracted by home events (siblings watching tv, playing video games, etc..), nor feel they are on their 'home turf'. At our office, we can use a wide range of curricula and learning aids that we don't have access to at students' homes.
Additionally, the variability of traveling distance makes it difficult to maintain consistent prices for house visits. By having Group Tutoring sessions, we can address the needs of many students at one time, thus providing more students the chance to get the help they need at more affordable prices.