Missioncoonery - Not sure I agree with your statement about ARC changes lines so often. After all, the REF40 was issued as a limited production model, and a game changer at that.
If ARC wanted to be consumer unfriendly,they could have forgone the upgrade route with the REF 5 and come out with a REF 6. But they didn't and IMO did the right thing by offering the upgrade. Heck, if you don't want it then you don't need to buy it and if you do, your not spending 13k on a new pre-amp.
If you want to pick a company who revamps there line-up frequently, look no further than Magico.
Anyhow, back to the REF 5, does anyone know if the upgrade includes the new faceplate and buttons?
Thanks