I believe you will find that Samhongsa is still making the high end products for MTH. They are not made in China. Please correct me if I am wrong.
I purchased the Santa Fe and the UP from that brochure. I did not think you could get much better than those engines. Was I wrong. The next brochure that came in the mail featured the die cast Challenger. That engine re-wrote the future of three rail model railroading.