It depends what meets other clubs needs. Look at the Bulldogs, Swans, Kangaroos, Hawks, ask yourself where their window of opportunity is, they might have a need for a Yze.
You also have to ask yourself will Bruce be part of the side in four years time, when the Dees are throwing their weight around in the top 8. Better to get something now than have Bruce as a list clogger in 2 years time (much like Yze is now).