[MxDiver]

I got my compass in a wrist mount; the reasoning for this was versatility. If you get a console with an integrated compass it stays there, with some exceptions as noted by Larry. However if you have a wrist mount you can always move it to your console, or at least to the console hose by using and adaptor, this is way you can move it around depending on the situation or at least until you decide where you like it best.