reply to post by elevatedone
The simplest way to put it is: Nvidia = Quality ATI = Quantity (as in bang for your buck).
People who take graphics seriously will choose Nvidia for a richer experience/added polish/features but it is more expensive.
People who don't really care and just want it to run and are looking to save money go for ATI. It's the GPU for the gamer on a budget.
When it comes to GPUs, as with all fine things in life, you get what you pay for.