Super 8 question

Are the Hizen, Admiral Scroder, Marco Polo or Elbing worth it? I already have everything else in the crate and the dubs are mostly saved up (this weekly reward of 150 dubs gets me there) so no extra money has to be spent. With all that I am guaranteed one of those 4.

Or should I hold on to the dubs and wait for the next big "event" (Anniversary or 4th of July most likely)