More like the homeowner is just now noticing. I've cut off my cut-outs for this year.
It depends on how much you're willing to do to keep them going. I'm feeding the honey back to mine, will wrap the hives, and am considering the terrarium heaters like Finski uses, just because I've got some really nice late cut-outs I want to survive. My farm is in a very windy area, so I'll be blocking the wind also.
You could always combine them with other colonies.