It depends on the brand and model.
Between $600 - $700, new in box.
100-260 or so
There is no 32mm handgun. That would fire a bullet more than an inch in diameter.
It depends on which gun.
100 USD
S&W never made a 25 ACP handgun for retail sale.
$100,000,000
The Rohm/ RG revolvers were generally very low cost firearms of very low quality. Values are generally in the $20-$40 range.
Most gun stores have pistols ranging in price from $150 (very low end model) to $2000, or more (for very high end models).
As of 2015, about $120.
50-100 USD