Unbelievable how some people don't understand that. Anybody who believes, "I am down too far to sell" simply does not have what it takes to self-invest.
If you wouldn't buy it today... you shouldn't own it today. Keep your money in what has the best chance to appreciate and you will do well. Letting it sit as dead money or writing it off as a total loss when there is something to be salvaged is just foolish.