The older "stuff" is straight-forward and easier to use. I would gather that most of the features of these newer supplies, very few people will use, but the displays look pretty. I don't care what the supply "says" the output is, or to how many digits, I always check the outputs with a calibrated multi-meter before hooking up to a circuit; it's just good practice. I think there is a tendency for some to go for appearance as much as anything else. Features like "sense" inputs on a bench supply(??), maybe if your test setup is across the room, but not on a bench. Just measure the voltage at the destination and tweak the supply, if necessary. CC / CV definitely a must and independent grounds, very convenient. Weight is good, if for nothing else but to keep the unit from moving when you go to change a control setting. (I have a newer ARB that slides away from my hand when I go to depress a button; most annoying. My older, less capable ARB would'nt do that. There is a lot to be said for the industrially hardened equipment instead of what is being passed off today. Just my $.02.