We are talking about a cost on the order of magnitude of $100k to preserve your body - about as much as the average American manages to save for retirement. A dozen times the cost of a standard funeral. Enough to save dozens of lives. You may not be able to be reanimated, and there may be large future costs of reanimation as well as curing whatever fatal diseases you may have.

The benefit, hopefully, is "enjoy long life in a high-tech future." That may well be worth the expense to you. But if we are just optimizing utils in the world, we might focus on shorter-term goals. Even if we hypothesize that life in that future world is amazing, we could commission a eugenically-optimized baby in the future world rather than preserving our own flawed selves at great cost. The desire that the future beneficiary be me rather than someone else is not coming from a strictly Utilitarian place.