My circumstances are remarkably similar to the OP. I have kept two 4513TSWs and two like new 39XX series pistols in reserve, to get me to the end of my handgunning days.
I did keep my duty pistols, 4506-1 and 4566. They still see range time regularly. And I bought a cheap small safe which I keep my current carry guns in, 457, CS45 and CS9.
I am selling off my collec..........accumulation and am enjoying the proceeds from same with wife 2.0
I have some very nice and very scarce pieces which have given me triple the return on my investment. I plan to sell down to just my carry guns and reserve pieces. If or when, I can no longer shoot 45s quickly and accurately, I will sell them and probably just go down to the two 39XX series guns.
The rest of the revolvers will go by this time next year. And I plan to enjoy the vacations and other items they will provide for me.
Regards 18DAI