What is 1862 one dollar bill worth?

Ebay says between $300 to $1400. But apparently they're not that rare because a hoard of them were kept somewhere.

I found this info on another forum site:
"According to Blackbook there are 4 types of the 1862 note.
two without a monogram and two with the monogram ABNCO
Type I is about 250 in good to 975 in very fine
the other three types run between (rounding) 125 and 585 (w/monogram)
635 (w/o monogram)"

I hope this helps!