1# A dead brain and body would have to properly be preserved. - Depends how good we get at reviving them!
2# There is no reason to revive you whatsoever Darvy. You are just another person among millions, what about you could possibly justify the expense? (No offense intended). - I intend to become worth reviving. And if we are good enough at it that it's cheap and some unforeseen problem occurs I may not even need to be worth it.
3# Food runs out all of the time. In a desert or on a mountaintop, the only source of food a person has easy access to is his dead companions and whatever supplies he has. Even in somewhere fertile like a forest or plains area, most food is way to fast or strong for a human to catch, and a few days living on berries or roots will leave you starving to the point of exhaustion. You get too exhausted/starved, when you lie down to take a nap, you wont wake up. - I suppose I could find myself in a position where I'm foodless; but I like to hope I'd have the ingenuity to try and move on by surviving on my body's natural "storage" energy for as long as possible, and then hopefully find some food.
4# The human will to live is the most powerful instinct we have. Say you told a person they had to drown themselves in a sink or 1000 babies would die- they would try to drown themselves, but after a few moments of holding their own head under the water they ALWAYS pull up out of the water out of sheer instinct to breathe. I doubt any person can resist the need to eat to live, in the same way no one can resist the urge to breathe. - I think that there is a difference between coming up for breath and eating somebody. The first is instant and immediately solves the problem, whereas the second takes longer and is more horrifying for the cannibal. I think by the time I am hungry enough to eat another human, I may have already died.
5# If it is some moral or ethical thing holding you back, think about this- The person you are eating is dead anyway, or will die of starvation soon. If you eat their flesh, one of you survives. If you dont, you both die. Then someone has to tell your family and loved ones that you didn't come back to them because you were too proud or too righteous to eat human flesh. The right thing to do is for you or your companion to eat the others flesh so that at least someone survives. - But what if you just finish eating your friend when help arrives? What if, as your friend's last breaths leave him as you tear through his skin for food, you notice fridge filled with food, or a water supply? Could you live on if you had to tell your friend's family and loved ones that he didn't make it because you ate him before help arrived? Even if no help arrived and you finally survived, could you ever overcome the sense of shame?