During the gold rush, they used to pack eggs in sawdust and haul them up to Alaska in covered wagons. They got $1 apiece for them.
Honestly, they do keep a long time. Just make sure they don't have any cracks in the shell that might let bacteria in.
My ex-MIL used to work for a small egg company here (35 years ago), and they called the cracked ones leakies. The ladies used to take some home with them when they were going to do some baking right away, and I made my family a lot of cakes, cookies and custard pies from those free eggs. I'm sure that would be a totally incorrect thing to do in this day and age.
We get by with a little help from our friends