I agree in theory Greenford but I believe it's a League requirement now. It's not just colour clashes, it's clashes of stripes too, if we played Newcastle for example now, we'd need a contrast.
At the end of the day we do want Argyle to make money too, so whilst I agree that commercialism has got it's grubby fingers into the away shirt world, it's not a wholly bad thing.
Where it does go too far though, and where it shoots itself in the foot profit wise, is when it plays fast and loose with tradition, when it tries to put shirt sales over identity.
At Argyle therefore we do 'need' to produce an away kit. What we don't need to do is introduce alien colours. We are blessed with the lightest of light colours, the darkest of dark colours with our main colour sitting in between (varying shade to individual taste).
It's kindergarten levels of simplicity therefore that we can produce a dark home kit and light away kit (or vicky-versa) exclusively using the colours in the Argyle swatch.
Why we don't is some way short of common sense. And it IS self defeating because more people would buy an Argyle coloured kit than would buy a non Argyle coloured kit, it's bleedin' obvious.