I am sad to see the mainframe platform go away. There are still some things that modern platforms could learn from, my biggest favorite is probably the heavy sy

I am sad to see the mainframe platform go away. There are still some things that modern platforms could learn from, my biggest favorite is probably the heavy system instrumentation that comes with it (system traces, SMF and RMF). And WLM is also neat. I am afraid it became a victim of its own success. IBM and other SW companies got used to so huge margins so they stopped innovating enough, in order to protect the revenue.