I never used to bother, as we drove through Idaho regularly. We bought directly from one farmer, when he had them; or at a packing house, 100 pounds at a time.
Here, they are $2.50-$4.00+ for a 10# bag, but for about $25 in seed, fertilizer, and water we should get anywhere from 300 to 700 pounds. Last year, we had a scant 100’ feet, and it wasn’t enough. Friends will help with any ‘excess’.
Also on the docket for this year is a solar drier, so dried hash browns, plus some canned boilers are in order.
You’re saying PLANT them to over-winter? I know that’s how they survived in the wild; but we hit -30F in the winter.
Ow, 30 below. Mulch ‘em, bury ‘em a little deeper. The potato is basically a perennial here in zone 5, but of course, one would wish to tend them to avoid any little problems which could result in the mass emigration of everyone back to Ireland. Or somethin’.