I believe I stated this in one other post, but I stand by it so I'll say it again: Scientists are so preoccupied with whether or not they could, that they never stop to think if they should.
Taking your opinion (and you made some very good points) into consideration, cryonics might be state-of-the-art and exciting to some, but how much of the future is really planned? What do you do if you do bring a "frozen corpse" back to life? Do they get a job and go back to society? How are they taken care of, or how do they take care of themselves?