This potential future payoff may not show up in the quality of the output. People learn more by browsing. People learn more about the search process when browsing, making future searching faster. People using SortTables better retain learned information across sessions. People using SortTables better retain their ability to use the system across sessions.
People using a browser learn more about their subject when given a broad problem.
The incidental exposure to related information may pay off in future exploration of a related problem.