Medicare Part B was $3 per month when it started...about one hour in wages..if you made a good buck.
Today, it is $105 per month...I don't know anyone in my circle who makes $100 per hour.
I thought it was even a bit more than that. Maybe location is a factor. Anyway, I looked at what "part B" covers, and what the pharmaceutical program covers, and for me it isn't worth it.
With non-seniors it's a different consideration. Part A Medicare does cover hospital stays, after all.