And your exactly right that AMD's customers are not you and me they are the OEM's and Channel Partners. But they are going to buy what they feel is best for THEIR customers... Their customers buy simply what they have available. And that is my point about mindshare...
Oh and the reason the 6150 is still being sold today is nothing more then because there is still stock.. Thats nVidias fault and noone elses.
EDIT: If AMD wants to improve product lineups then they need to get their marketing guys off of the engineering floor and on to the marketing floor. And instead of targeting consumers they need to target their customers. If they want to improve consumer interest, then they need to build a word of mouth campaign... As the situation stands right now, when some kids mom says, "hey son, what do you think about this computer?". Hes gonna look at it and say, "Oh that has a Bulldozer processor, dont even think about it."
And that is what mindshare does. It's far more pervasive and powerful then what people think. A word of mouth campaign is powerful, but it needs a product worthy to support it.
I'll simply point you to look at marketshare trends in the months following new product releases. If you look at the line graphs you'll see a clear relationship between those products considered to have poor performance and those considered to have good performance with respect to marketshare. That is the power of mindshare.