[InitialLastName]

Part of the problem is that, especially with an illness with as complicated a treatment process as many cancers, there's no way to even estimate the expenses. Even once you get treatment, the expenses might not be accessible until the bill comes in and you find out what your insurance company will pay for.

After that, there's a sunk cost issue: once you've dropped (N*your current net worth) on treatment, what's the harm in continuing?