Advantages
1) 1 person runs the tournament
2) no handling of entry forms, no paper work
3) paperless office
4) no staff, only 1 person who is skilled in drawsheet is needed
5) no need to rely on volunteers
6) no matter how big the tournament is, 1 person could still run it,
the only overhead that could go up would be the inputting of the results, other than that, there is  very little work to do. Inputting results is still only point and click
7) no need to spend money designing entry forms
8) no need to spend money printing entry forms
9) no need to type player names into t he pc, the players themselves do that online
10) no need to pay somebody to build a tournament website and update it
11) players save money from having to mail in their entry forms
12) eliminates tournament overheads
13) SAVES YOU TIME AND MONEY