Illustration: Mr Cuddington
Previously didn't allow any upgrades.
The previous "no upgrades" limit caused problems in the Pirate / Robot 2-player matchup. One of the blueprints calls for a food outlet with certain upgrades, and since this food outlet couldn't be upgraded, there was only one other. That turned what should have been an easy-enough blueprint into a difficult one, requiring a lot of inside knowledge of card counts, and not suitable for a first time 2-player game.
The altered version is still cheap, can now be upgraded, but retains the thematic limitation that it can't be made very good.