Police Trade-in Sig P229 40 S&W & 357 Sig

I take a look at a P229 that was a police trade-in. Do these old guns still have value and game? What’s the difference between 40 S&W and 357 Sig? Which would you choose?
#357sig #sig #sigsauer #40sw #handguns #pistols #guns #selfdefense #leo #2ndammendment #2a #pewpew #pewpewlife