Should I just pay off my ParentPlus loans?

Executive Summary

So I got three kids through college but accumulated $165K in P+ loans in the process. I’m 52 and wish to retire at around 60. My spouse and I have around $1.7M in CDs/IRAs/401Ks. Debt-wise we only have mortgage debt apart from the P+ loans - around $725K on a house worth $1.1M. Should we just use ...