Please note that the numbers that I'm providing are not real numbers, just guesses on my part.
That said, currently Amtrak has 13 roomettes to sell on the Portland EB sleeper, room #1 is the attendant's room. During off peak season, Amtrak might put up 3 rooms at the D low bucket, 2 at the C (middle) bucket, 3 at the B bucket, 2 at the A bucket, and 3 at the S (high) bucket price. During the peak season, you might find only 1 room at D bucket, 2 at C, 3 at B, 3 at A, and 4 at S.
By adding a second sleeper, the above scenario's would receive double the number of rooms at each bucket level. Therefore there would be more low bucket rooms available, more mid-bucket rooms available, and yes more high bucket rooms too.
OK, let me try to do a better job explaining what I am saying (writing).
Let's start with there are currently 13 roomettes. And if they are currently selling in the highest bucket, this means that
at least 10 of the 13 have been already sold.
Amtrak adds a second sleeper, bringing the total number of roomettes to 26. Now, originally, only 3 rooms were at the lowest D bucket. With the second sleeper, let's assume that there would now be 6 rooms in the lowest D bucket.
However, as mentioned there are already 10 sold. 10 is more than the new 6 bucket D rooms. So, adding a second car will not yield the availability of any new D bucket rooms.
Amtrak adds a third sleeper, bringing the total number of roomettes to 39. With the third sleeper, let's assume that there would now be 9 rooms in the lowest D bucket.
However, 10 is still more than the new 9 bucket D rooms. So, adding a third car will not yield the availability of any new D bucket rooms.
Amtrak adds a forth sleeper, bringing the total number of roomettes to 52. With the forth sleeper, let's assume that there would now be 12 rooms in the lowest D bucket.
Now, 10 is finally less than the new 12 bucket D rooms. However, remember originally, 10 was the minimum sold to get up to the highest bucket. You could have had all 13 sold. With this, 13 is more than the new 12 bucket D rooms.
The result, if you didn't loose you, is that Amtrak would need to go from 1 sleeper to at least 4 sleepers, if not 5 sleepers, so that there would have to be more lowest bucket D rooms.
I think. :blink: