The dealer told you your limbs were only good for 3000 shots?!?!?!?!
Now, I am no expert, but this sounds like a load of BS to me, and I am sure others will chime in with that emotion too. If you dealer is telling you this, you need to find a new dealer, cause that is one long line he is trying to get you to take.
You also need to tell him he is an idiot!