Here in Seattle nearly all new bikes come with Shimano parts. Campy is very hard to find included with a new bike but can, of course, be ordered. The problem with that is that there is no price break - you have to pay full price including the full bike shop markup.
Is there a reason for this? Does Shimano get kickbacks or have some super marketing deal? Is this true in other states or countries?
Shimano sells its stuff to bike manufacturers at a big discount, i believe its discounted below the wholesale price by 15-20% and thats a strong incentive for manufacturers to use their stuff