I'm surprised that a gun dealer would be so ignorant as to confuse a maintenance interval with "failure".
The only thing the Rohrbaugh gives up to durability is the spring it HAS to use. The technology and metals today do not yet allow more durability from a very small spring in this application.
However, the spring does hold up for a few hundred rounds (it's more than 200 now I think... more like a recommended change every 500 rounds) considering the pounding it takes in so small a travel and having to handle 9mm ammo.
But at $5 each, they're really cheap compared to the ammo you're going to shoot (what's the latest price for 500 rounds of self-defense ammo?).
When I bought my R9s, I bought 5 extra springs at the same time just to have them on hand.
Considering the intended use of the pistol and the fact that I'm on the wrong side of 55, I'm thinking that those 5 springs will last me a "lifetime".
You mention that:
"I want a gun that is reliable and tough and can take 2000 round without breaking. "I have to say; no one can accuse you of being very picky about pistols.

I own lot's of pistols that have 10k plus on them, and they all still look like new.
I don't think that a "2000 round pistol" would last very long in the marketplace.
