With the ongoing thread about wanting a C-Store Connie and D7, and Kael's reply, I started to contemplate such things.
Promo ships; R&D packs, obviously. Estimated odds of 1/100, meaning roughly 25k Zen for one ship. (well, 25k Zen for a fairly good chance of a ship; binomial probability means there is still a 33% chance of no ship) Likewise, Lockbox ships are estimated odds of 1/200 to 1/250, meaning roughly 28k Zen for one ship. 9again, result not guaranteed)
Now, there's no way Cryptic are going to make these ships cheap; the best you'll see is Mudd's market. So, hypothetical proposal - if there was a straight forward 30k Zen for an infinity promo/lockbox ship box (player chooses precise ship on box opening) would people use it?