because Congress simply wouldn't approve the budget to make or design new ones.
Considering the overbudget turds they've laid recently. I can't blame them.
This is the Zumwalt:
"Originally, 32 ships were planned, with $9.6 billion research and development costs spread across the class. As costs overran estimates, the quantity was reduced to 24, then to 7, and finally to 3, significantly increasing the cost per ship to $4.24 billion (excluding R&D costs)[1][19][20][2] and well exceeding the per-unit cost of a nuclear-powered Virginia-class submarine ($2.688 billion).[21][22] The dramatic per-unit cost increases eventually triggered a Nunn–McCurdy Amendment breach and cancellation of further production.[23] In April 2016, the total program cost was $22.5 billion, with an average cost of $7.5 billion per ship.[2]"
Considering the overbudget turds they've laid recently. I can't blame them.
This is the Zumwalt:
"Originally, 32 ships were planned, with $9.6 billion research and development costs spread across the class. As costs overran estimates, the quantity was reduced to 24, then to 7, and finally to 3, significantly increasing the cost per ship to $4.24 billion (excluding R&D costs)[1][19][20][2] and well exceeding the per-unit cost of a nuclear-powered Virginia-class submarine ($2.688 billion).[21][22] The dramatic per-unit cost increases eventually triggered a Nunn–McCurdy Amendment breach and cancellation of further production.[23] In April 2016, the total program cost was $22.5 billion, with an average cost of $7.5 billion per ship.[2]"