My "lots of use" probably isn't nearly so much as your "lot of use".I will freely admit to being ruff on stuff but when I sent my Lee AP back to Lee they sent my money back saying it wasn't meant to be used industrially. I wore it out in 3 months. To be fair though I'm on my 3rd Lock-N-Load in 6 years.
I look at mine and wonder how long before it's worn out, but it keeps going and going. I think it's a good design for such a cheap press, and one that was made a bit sturdier would be great.