usually it has to be rotated close to 90 degrees or more before it would start to be collectable.
In 1994 I found a 1993-D Lincoln cent in my pocket change with a die rotation of about 75 degrees ~ I sold it to a collector for $30 ~ not bad!
Modern coins with die rotations are rare ~ it happened much more often on the older coins. The 3 cent pieces and the 2 cent pieces are well known for major die rotations.