> I think the plan was clearly that they would reuse the software for every caucus during this primary, so the $60K was one of a series of payments for the same product.
No. The plan was that it would be used in the IA and NV caucuses, which is why the IA and NV Democratic Parties jointly purchased it.
The other states and territories using caucuses were never planning on using it. (And mostly, the other caucuses are structured differently with more primary-like features, so it probably wouldn't make sense to use shared software tailored to the IA and NV caucuses for them.)