This has been an interesting thread to me. I saw this game when it first came out but opted not to get into it (to my regret now) in part because my son was too young to get into it and I knew if it was around he would want to play it. I was alway put off a little by the fact I knew I'd feel compelled to get lots of various ships and I could picture my wife getting a bit huffy about spending so much per tiny ship (she balks at the idea of paying €25 on a copy of King of Tokyo - she basically thinks everything costs too much).
That said I've finally caved and I'm planning to order the base game tomorrow after I failed to find an English copy in Hamburg today though it will take 5-10 days for it to arrive. (I found a German copy, but I don't feel my German is good enough to have a German copy - maybe if I buy two base games I could get one German and one English).
Are there ships that are now impossible to find from the earlier waves? Aka ships I should snap up if I happen to find them?