There are many fine reasons to wait until Election Day to vote including: (1) early voting lends itself to fraud due to less poll scrutiny; (2) late revelations can change wavering voters' minds. But National Review summarizes the best reason to vote today (which The Monk did, and which he always does), not on an early voting day:
While it is important that voters go to the polls decently informed, it is also important that they go to the polls together. This is partly for reasons of prudence — among other concerns, absentee ballots offer many greater opportunities for organized fraud — but also for reasons of ritual. Voting is by its nature a communal exercise, and the franchise should be exercised in a way that reminds us that in our republic the people are the masters of the state, not the other way around — that we are citizens, not subjects . . . There is nothing like a presidential campaign to remind us that democracy is not especially majestic, but there is a kind of austere beauty in free people coming together to cast their votes, whether they are purple-fingered Iraqis or citizens of the world’s oldest democracy gathering at schoolhouses and town halls. The togetherness of that exercise should not be diminished. There will always be some necessary exceptions, but those should be — exceptional. Today is the day to vote.