Hey Bob,
I have given the topic some thought, If Brass cost more, only a very few Gamo owners will buy them, for esthetic reasons. All the others will go with the cheapest model, just look at all those people buying B-3's ? hehehe
But for real Bob, you have the only GRT (GREAT RELIABLE TRIGGER) in the WORLD !!!!!
I know that I would have paid more, before I knew how GREAT it IS. Now I can't imagine how inexpensive the best Gamo replacement trigger, and other air rifles, is !
If I were thinking of another Gamo, I would order your trigger before I ordered the Gamo ! Just so I wouldn't be faced with there trigger ever again.
If you have some time on your hands, there are a great many air rifles out there that could a good trigger, and only a few springer's triggers, that equal the GRT-III. JMHO