There is also the safety aspect to consider. They are sometimes called Seaspearers. I know I punched out the spray dodgers on my 702 Haines Signature at least 3 times in 5 weeks in Cooktown in the FNQ chop that develops into a short sharp swell. My part owner in it nearly lost it one day in Bribie Passage in a wind against tide situation filling it to level with the outboard. Luckily it kept going. I would never own anything but a cabin boat ever again. Everything I have heard about the big Seafarers from past owners paints the picture they they are worse. Have a read of Greg's comments on the last page of this. I couldn't second his thoughts more on walkarounds versus full cuddys or half cabins.
http://www.ausfish.com.au/vforum/sho...=124086&page=3