We spend loads of time on here talking about upgrading and changing our equipment but how many of us have components within our hi-fi that we can't imagine changing, either for a very long time (many years) or ever? For me, it would have to be my Michell turntable (can't imagine ever changing this) and my Wharfedale floorstanders. I would have to be VERY VERY sure about changing my NAD amp as well because its the first one thats ever been consistently good at low and high volumes.