I think you got a fair deal ...
The Ruger's of 20 yrs ago ....are head and shoulders above the Stoegers - short term and long term.
20 yrs ago - Ruger red labels probably sold new for around $ 650 ...and
they've held their value reasonably well.
On your gun / the downside today is not many shooters like the 26" barrels / many of us have gone to 30" barrels for an all around gun in O/U's for sporting clays and bird hunting...but if you like the 26" , that's good too. What's important is that you like it .../ get out and have some fun with it.