Any Beretta that fires is worth $150.
Assuming we’re talking a Tomcat?
They come in blued and in stainless (INOX) but I’ve not seen one with a blued frame & stainless slide.
Back before gun prices went crazy it was hard to find a Tomcat in good shape for under $400. Not much less than new but they’re imported in small numbers and the .32s are more desirable than the rimfire versions.
If it’s a model 81, still worth the asking price but prices dropped when they dumped a bunch of surplus prison guard 81s around $250-$300 but I’ve never seen one of those with a stainless slide...