I fully realize that you won't be buying a stack of blades anytime soon, but someone out there might be interested in getting a few.

What is doable for you would be installing the render engines which you use onto hubby's machine, and installing any network-capable render engine he uses onto yours. Then each of you could exploit your spouse's computer when the spouse isn't using it.

And it is not uncommon for Poserfolk to get a new computer but still have the previous computer; that older computer can serve as a Queue remote.

Two HyperThreaded octal Xeons with 64GB RAM, $100 32 render threads!

Poser 12, in feet.  

OSes:  Win7Prox64, Win7Ultx64

Silo Pro 2.5.6 64bit, Vue Infinite 2014.7, Genetica 4.0 Studio, UV Mapper Pro, UV Layout Pro, PhotoImpact X3, GIF Animator 5