Presumably just leaving users with 10 accounts not attached to a company would cost zero dollars.

Someone else in the thread mentioned that Education users can migrate their accounts out of the organization to free gmail amounts. Surely some or all of that workflow applies to these legacy free accounts too.

Not to mention maintain it against the constant library churn.

Anyone who was ever an Xoogler knows this is basically a non starter. The privacy issues alone are radioactive as far as desirability to chase.

Pardon I meant that question literally not sarcastically. As in is this an actual estimate based on understanding the nature of the problem or an estimate from the outside.