How about not wanting to buy from a company which has a shocking record for supplying spare parts and service information (just talk to a VCR/DVD service techie) and an even worse history of treating customers with contempt and loathing, to the extent of deliberately infecting their computers with dangerous malware? Sony still has not even apologised for that particular stunt. Not to mention not wanting to buy from a company that goes out of its way to lock you into its products so that it can gouge you with exorbitant prices for must-have accessories. Who do you think invented the idea of putting a chip in a perfectly ordinary battery so that you couldn't buy any other brand for your video camera except (triple the going price) Sony-branded batteries? Who do you think insisted on equipping all its still cameras with proprietary, three-times-the-going-price, pay-a-royalty-to-Sony Memory Sticks instead of industry standard Compact Flash or SD?

With a track record like that, it would need to be a bloody good reason.