we're not the customer anymore, the Telco's are
Seems strange, but the more I think about it its clear. People don't go to shop for phones, they go to a telco to see what they have on what plans and sign up.
The telco then tells Nokia or HTC what it is they want to be offering to their customers.
Now that I see it this way, its clear that since people are no longer looking to purchase a phone. So no matter what experts or advanced users or even small businesses want to roll out to their sales people, the phone companies don't make what people want; they make what phone companies want.
I think that iPhone is the only exception to this ... which is perhaps why the Telcos often charge more for those on a plan.