Cracked?
As I understand it Enigma was never cracked.
Instead The Bombes were just an automated brute force attack. Reading the messages of the day required that the brute force attack completed before the key of the day was changed.
Don't get me wrong this was an amazing achievement.
Couple with a good understanding of the cypher meant that the possible permutations of cyphertext were magnitudes less than originally believed.
This meant that an brute force approach became feasible, but if I understand correctly this was still too slow.
It was only when a crib was introduced (trying likely message content) that brute forcing the key became a realistic proposition - much like a dictionary attach on today's passwords; the squishy meat-bags are the weakest link.
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As to does an enigma machine have worth toady?
Yes; providing it is part of a wider story. If it is just an item with no relationship to other items in a collection then no. much the same as any artefact.
Biting the hand that feeds IT
