I wore out a couple of the Lee hand primers as well.
I've developed arthritis in the base joints of my hands. I found the levers on the Lee to be to short, therefore not enough mechanical advantage, to do the job painlessly.
I picked up one of the LEE bench mounted presses from Western Metals, a banner sponsor. It worked OK, needed some tweaking but was just as fast as the hand primer. Just not as handy, as it requires mounting to a bench or some other surface. I mounted mine to a 12inX12inX1/2in scrap aluminum plate, so it wasn't necessary to mount it permanently to the bench.
The Lee was OK, but I finally went to the RCBS hand held unit, which is slightly more complicated than the Lee and takes a bit of getting used to. Nothing serious though and once you get used to the slight differences, it's a very smooth and positive unit, with longer operating levers, that are quite sensitive to the feel of the primers seating or binding .
It's biggest issue id the curved bar, attached to the priming arm. It also works to stop extra primers from getting in into the works. It's not very rigid, and is easily bent, especially at the point where the primers slide over it to enter the primer mandrel recess. As long as you're careful it isn't a problem.
The only other issue with the RCBS hand primer is that the priming mandrel isn't held in place, if the unit is turned upside down and will fall out. It goes back in very easily, just drop it right back in, from the top.
I know a lot of folks won't do this, but I always purchase two different hand primers. On for small primers and one for Large primers.
If push comes to shove, I could use the Lee Bench Primer. It's now relegated to back up mode, hanging from its nail on the wall.
Interesting. I was thinking if I replaced my Lee Hand Primer I'd want to go with the bench mounted one. Maybe I should reconsider.