That doesnt sound a like a lot, but the tradeoff is that it hits the battlefield on the first turn and is really only good when its attacking
Returning to port gives you a chance to recover yourself, stock back up on supplies and equipment, and sell fish, utilising the black market for riskier rewards
It's this last category that has absolutely blown up in the last year
There are a few permanent that give you multiple shots (Infernal Tribute is an example), but not many
Still, keep in mind that those cards come with certain conditions
Collectors should be on the lookout for 21 Illustration rare treatments, 11 special Illustration rares and Supporter cards, six new hyper rare gold etched treatments and six ACE SPEC cards, a collection of Trainers and Special Energies