You're right there, actually. The government isn't going to "takeover" the entire industry, that's paranoia. And given a choice between dealing with the post office and an HMO and an insurance company everybody would choose the post office, every time.
Do you know that I've never NOT gotten something someone has mailed to me in all these years, nor has someone not gotten something I've mailed them? ...even the important stuff, where either I or they would have called had it not arrived. Not bad.
I'm not trying to knock the Post Office, but they're hardly the picture of efficiency. I don't trust all the assurances from Obama that everything will be the same, we can choose our doctors, etc. Once government gets its nose in there, they will start dictating. It puts way too much power in politicans' hands. Costs will run wild, and rationing will be the only way to avoid going broke.