My other, back-up P229/40, which is not shown, has 3400, flawless, rounds thru it, by me, as well, which I estimated already had aprox 800 rounds thru it by its previous owner.
Frame life on the aluminum SiGs is around 20-25,000 rounds so you have a long way to go. It took my wife about 8 years to wear out her first Sig, but her agency shoots a lot of rounds - about 2500-3000 per year.