I just got a notice from Medicare about this very thing, they said they now cover them co-pay free! So yes, make sure to get them up to date!!
Although since I do get them every 8-9 years I'm not too worried, I'm more worried about keeping pins in my mouth!! Scares me, but I just can't break it! Even after seeing that Little House episode with the guy swallowing those nails, still makes me think of it every time I do it. Still can't break it even worrying about the metals that must be in them!! Maybe those wrist things will work for me?!