I thought I was done with this thread, but I just can't resist jumping in one more time. My husband is a Nephrologist, and he says any person who gets a transplant under Medicare will get his/her transplant drugs covered by Medicare. I obviously know nothing about the person cited earlier, other than what has been posted here, but he/she might have been very poorly advised, or perhaps is not being entirely truthful about the situation (no insult intended, but adherence to some of these complicated post-transplant regimens can be very difficult).
I won't link to the Medicare Bulletin covering this topic because it is horribly complex and unpleasant reading which I would not wish on anyone. However, both hemodialysis, kidney transplants, and meds related to end-stage renal disease and transplants are covered.
That having been said, I think that while the US is too large for an NHS-style system to work, we will likely move to a Canadian-style system (and years ago there was an in-depth study, paid for by the Congressional Budget Office, which recommended exactly that), in which care is provided by "private practitioners" and groups of employed physicians (a mix, like we have now), but the care is paid for by a single governmentally-run system, similar to Medicare, but administered on a state by state basis.
The first step will likely be the opening of governmental insurance to individuals for purchase, which will create pressure and competition on private insurance, which they will be unable to
We will save tons of money on administrative costs, and the for-profit insurance companies will fade away, or take on a much smaller, cheaper, administrative role. It will happen, but it will take time. You have no idea how much support there is for this change, among people who work in healthcare, as well as all of us who utilize it!