Why Dow Theory Letters?

Because Richard Russell has the following:

He has helped me make money in a seriously bear market.
He has a daily column on the internet (6 days a week).
He has a bi-monthly column as well (also available on his website).
His flat fee of $250. per year has paid for itself many times over.
When he is wrong he admits it; he never claims to be an "expert" or "infallible."
He explains and he teaches in his columns.
He has a myriad of opinions on other subjects that are always interesting.