The alloy frame makes huge difference in weight. All stainless Sigs are pigs! On the other hand, that extra weight makes them a pleasure to shoot.
Oh yes, my friend ..... there's always a trade-off. In my case, I don't have any handguns that are designated as 'range toys'. I want to carry everything that I own !
This Sig will spend much more time being carried, than shot ..... so the trade-off is in my favor.