Chain life

[darrsi]

Are oem chain/sprockets really that different from aftermarket items?.. Aside from the price that is 

I still think it's down to how well you maintain them, if you're a good weather only rider, ride like a maniac, etc.
There's loads of factors that can improve or shorten their lifespan, but i don't see any reason why a reputable company that specialises in chains like D.I.D. for example should be in any way inferior to an OEM one.