I bought one of these guns and researched the value myself. From what I learned they are of similar value to the standard PT99, and not particularly rare.
Taurus made several 9mm handguns. Which model did you have in mind?
msrp $436
100-1200 usd
10-150 usd
100-450 USD
300 or so
100-300 dollars
100-300
50-300 usd
100-300
50-250 usd
50-500 usd