How much is too much?
This is a little mental exercise.
There is much focus on IRMAA, Roth roll overs, when to take SSI, which bucket to spend first etc. In a hypothetical world, how much savings would make it impossible to benefit from any planning? If you have a billion dollars in personal assets at age 60, you are gonna pay! No tax brakes. You pay the max, right?
So, what is the lowest ("high net worth") amount of assets you could have and not benefit from retirement planning?