How do you keep swap file wear to a minimum?

You have a diskless appliance platform. How do you keep swap file wear to a minimum?

A.
Issue FW-1 bases its package structure on the Security Management Server, dynamically
loading when the firewall is booted.
B. The external PCMCIA-based flash extension has the swap file mapped to it, allowing easy
replacement.

C.
Use PRAM flash devices, eliminating the longevity.

D.
A RAM drive reduces the swap file thrashing which causes fast wear on the device.