I think the reason is because April is the last time the ship will be doing the 10 day cruises. We just booked a suite (there only 6) last week for the april 9th sailing. We were on a wait list and got lucky!
I booked a suite on the Ocean back in July for the Panama Canal sailing , 04-19. At that time there were only 2 left! so I jumped on it - glad I did - found out last week the ship was booked from catagory C up.
No... I think the answer lies elsewhere. Ships tend to sell from the top, down... and then from the bottom up. Last to go is the middle range. Suites are generally in great demand and are swept up quickly. There are some exceptions, but this is the general pattern. There's still a lot of money out there and a lot of people who will pay for comfort... which, like first class in the air... is "space"!
I think suites and mini suites book quickly on this ship because the regular rooms are fairly small. We just got back from Ocean Princess and had a great time , but, found our room and balcony
to be one of the smallest we have had,but not unliveable.. You won't be inviting friends in for a party in the regular sized rooms, but , don't let that discourage you from booking and enjoying any cruise you take on this ship.
Ernie is right -- cabins aboard cruise ships tend to sell from the top down and from the bottom up, converging in the middle. MV Ocean Princess has only six full suites, but the minisuites are not a bad consolation prize! They have the same basic layout as the full suites, although the rooms are a little smaller.