Comment by gwbas1c
Of course they do, their bias is to keep all the cards in their favor. Our (the consumer's) bias is to shorten copyright.
Remember, ultimately it is the consumer who pays the creator; thus the consumer has a vested interest in negotiating how long copyright should last.
However, ultimately, few people really are holding any cards. Most will have to compromise a great deal, to be able to generate income and benefit from existing publishing infrastructure.