My first handgun was a M&P40c with crimson trace grips for $650 for my EDC but am currently looking at the Bodyguard 380 for a smaller gun for concealed. Midwest had them for $350 on sale at one time.
I feel older than dirt, but I think I paid $15 or $20 for a single shot derringer, still have it. I then moved up to the big leagues, paid $75 for a Ruger Super Blackhawk, still have it.
Two hundred something for a Colt Trooper MKIII that is now my son's and a reloading setup purchased at the same time. Was driving a fairly new 1974 K5 Blaser and spent the money from an accident setlment on the gun instead of fixing the K5, which was used off road anyway.