Come to think of it, you're probably right in making this non-opinion based, and I wouldn't even have to make the question long.
"This question has the assumption that there exists a technology exists that can provide a person a new, 18-year-old body, effectively allowing immortality if the individual's brain can be recovered. What cost, in USD, for the body would stop most of the middle class (>60%) from being able to make use of this technology?"