What would you chose?

I have 2 systems:
A.
Conrad Johnson 2500A Amp
Conrad Johnson PV-15 Pre-Amp
VPI Scoutmater
B.
Fisher 101c Int
VPI Scout

I had my anniversay this week. My wife officered to buy me one component to upgrade my system.

WHAT WOULD YOU CHOSE TO UPGRADE, and TO WHAT?

TYVM