I would like to clarify a lot of the information presented above.
The CBR buses do not start and random places. Buses headed for Magic Kingdom and buses headed for Downtown Disney start at Martinique, and then go clockwise. Buses headed to Epcot, to Animal Kingdom and to Disney's Hollywood Studios start at Jamaica and then go clockwise. It is NOT random.
Waiting 30 minutes for a bus should be a VERY unusual circumstance. Disney aims to run buses to each location no longer than 20 minutes apart. 30 minutes can happen but shouldn't be expected.
There are many substantial differences between the Values and the Moderates beyond simply room size (Value rooms are 260 square feet, CBR's are 340). Here are some things that a Moderate has that Values do not: table-service restaurant, pool slide at the main pool, pool towels at the main pool, hot tub at the main pool, in-room refrigerator, covered bus stops (think protection from rain and hot sun), 24-hour on-demand Bell Services (as opposed to the time-limited Luggage Assistance that you have to make an appointment for), two sinks in the bathroom, multiple internal bus stops (meaning that no room is too far of a walk from a bus stop) and some sort of additional recreational activity (e.g., rental boats, rental bikes, fishing, carriage rides). In addition, Coronado Springs and the Port Orleans resorts have queen-size beds (CBR still has the double beds just like the Values).