Actually, I think the costs of caloric restriction are higher than cryo and the benefits are less.
I'm a 24 year-old male. According to this actuarial table I can expect to be alive for 52 more years, which puts my death in 2061. I'll use gwern's numbers and assume caloric restriction increases life span by 20% in humans. In that case CR would give me 10 more years of life, moving my funeral out to 2071.
CR would only pay off if life-extension/singularity/whatever technology happens in that 10 year span. I'm very confident that advances in curing aging will happen sooner than 2060, so I'm not concerned about dying from old age. I am concerned about dying due to accident, disease, or violence, so I'm signed up for cryonics.
Caloric restriction doesn't cost money, but it does decrease quality of life. Hunger makes it harder for me to have fun. I can't think as clearly. I can't run or cycle as fast. I'm not nearly as productive. Cryonics doesn't require a major lifestyle change and it doesn't hurt my current quality of life.
What eating less energy does to your quality of life depends on how fat you are.
For many people in the west, eating less dietary energy would improve their quality of life - often rather dramatically.
Hear ye, hear ye: commence the discussion of things which have not been discussed.
As usual, if a discussion gets particularly good, spin it off into a posting.
(For this Open Thread, I'm going to try something new: priming the pump with a few things I'd like to see discussed.)