I guess you didn't see my post on this a while back...
Since it seems they will have to collect tax... Amazon is already planning local brick n mortar warehouses. They are shooting for same day delivery to your front door. Order it by...say noon.. and it'll be there when you get home. They pay their own drivers and you pay something like $5.00 for the same day service... otherwise they drop it next day for free.
Going to impact companies like Fed Ex and UPS...

"Nobody scrutinized Obama when he was running"
- Ben Carson smile smile smile smile smile smile