Maybe the Chevy Tahoes were priced as the initial capex, and a maintenance and support contract covering capex and opex for the next X years with a local dealership? I’ve sometimes seen this in corporate budgeting. Some companies prefer to lock in support and maintenance in advance for a more expensive fixed price instead of pay a variable but lower price over the same time period because of the budgeting vagaries that entails.

Considering the amount of time and the number of expensive management staff involved in them I’ve seen some budgeting knife fights burn up, I see the logic.