The Sig comes with top quality night sights, that right there is a $100+ value. When you throw in the night sights, the value of the Beretta isn't as dramatic. Like I said previously, I have owned both and the only reason I got rid of my Beretta was because of the slide mounted safety, I think they are fantastic guns and you can't go wrong with either. Now that Beretta reintroduced the 92G, which is a decocker only, I plan on picking one up in the near future.
Personally, I don't like Meprolights... but neither here nor there.
Still, you stated that most shops had the SIG in the $900 to $1,000 range. Finding a great buy doesn't change that they are commonly $250 more. Looking on Brownells, they have a set of Trijicons for my Beretta at $122. Even if we do $150, $100 is a nice chunk of money for ammo/magazines. Both guns will do the exact same thing, probably will run flawlessly if maintained, and have a great company backing them. My view, I'll keep that extra $100/250 in my pocket.
But price difference goes even further away if you consider a Glock or M&P. Using the same dealer as the other two prices above... $517.49 for a Glock 19 or 17, and $494.49 for an M&P in 9mm (full size).
Tried to get a price on a similar made pistol, but only thing in stock on Davidson's from CZ is a 75 Compact (didn't check about sights, and not looking it back up). But even that is $632.49. My SP-01, which came with night sights (Meprolights [emoji107]), was $675 at the end of this past April (new). But not a number I would use, because it was from a different dealer and not through Davidson's.
While I love the Beretta, I like the SIG. I run it because I have to, but I'm not going to argue value of them. If you like spending $250 more on an handgun, I'm glad... and I hope at the end of the day, you are too. I've made expensive purchases because I want to. But you really can't give them a pass at pricing when you compare the two. Beretta pistols have lower price tags compared to SIG pistols... even if you consider night sights.
In regards to the 92G, I'm glad they came back out with them... but don't know if they will produce them to meet demand. They have the same MSRP of the FS... but if a lot of people want them, prices might be up there on a limited number. Personally, if it goes to that or you like a different model (Compact, Brigadier, Inox), just get the kit from Beretta for $55 and you turn your FS into a G very easily.