I'm not sure of the lack of 'lifetime' warranty from Lee. I have a few cases in point:
- Lee 6-cavity mould belonging to a buddy that he had used to cast literally thousands of 9 mm. He left it with me so that I could 'learn' how to cast properly. Well, suffice to say I broke the sprue handle completely off. Not the wood, the metal part.
- Broke the wood off another mould due to my overzealous thumping of the mould to get a boolit out.
- Tore off the core pin from a buddy's slug mould. I guess the lead wasn't hot enough or something or maybe in my haste didn't prep the mould well enough. Tore it off with a channel-lock whilst trying to get the solidified slug out.
- Borrowed another slug mould and guess what...tore that one off too. I know, I have great friends eh.

There are other, more embarrassing tales to tell.

but I think you get the point...I am rough with my tools.
But guess what? Every single time, Lee came through for me with a no questions asked replacement, sent to me for FREE. All I did was email them, explaining what I did in full honesty. A few times, they also took the trouble to explain to me why it broke, and how I can avoid it in future. FYI, none of these tools were new...they were all YEARS old.
In my book...that's not good service. That's GREAT service.
I think their dies are just great, and they're constantly coming out with new and innovative ways to help us, the reloader with our hobby. I'm happy to support RCBS as well, due to my experience with their fantastic warranty (I won't go into detail exactly WHAT I broke from RCBS, but break it did!) but dollar for dollar, I can buy lots more powder and primer if I use Lee stuff.
In our hobby, that's a plus every time.