Some of the negatives I hear about this method .
Takes too long!
Prep is too hard!
Your going to cook that for 24 hours???
Too expensive!
Well the sous-vide method lends itself to mass production easily. The prep time on 4 packs of seasoned salmon or scallops with butter in food saver packs is little more than 1.
Get home fill crock pot with hot water , throw in a pack of frozen seafood or a scallops & in 45 min of no work or watching its ready to sear!
Steaks are the same! Fix several bags of seasoned steaks , freeze , throw in one when you get home & sear an hour later!
For long cooks with a tough piece of meat it's like a crockpot , throw in in the night before or in the morning & it's ready when you get home!
As far as cost Muebe turned me on to the dorkfood $99 cooker & I've spent a lot more on worse cooking gadgets