If you were talking about 2012, then why did you claim
DCL had cancelled itineraries that don't even exist yet? The Wonder has not been announced for summer 2012 or beyond, whether they go to Mexico OR Alaska. You might still get your summer MR cruise in 2012.
Also, I didn't assume anything. I was reacting to your use of the word "cancel" which 1) has a very specific meaning, 2) implies that a bad business decision was made on the part of DCL, and most importantly, 3) was not the truth. My response was certainly not based on whether or not you were a "newbie." I care about people saying things that aren't true, not what their post count is.
FWIW, yes, MR cruises for this year's spring break period do have all categories open, but they are not "beginning prices." They ARE cheaper overall compared to the cruises out of PC, but that's because they are introducing the concept of regular Disney cruising to a crowd that is used to the freedom of annual passes that are far less expensive than APs for WDW. We were on the 1/30 MR (LOVED IT!) and thought about rebooking for DD's spring break this year (instead of next year), but the price was much higher than what we'd paid to book last year.
As someone who also has school-age children, I too would very much like to see DCL options out of LA over the summer. Due to maritime law regarding foreign-flagged ships and weather concerns, however, this is unlikely to happen.