I understand settling is a major issue with log homes. Apparently there is an assembly technique that prevents gaps, etc from forming when the house settles. Some mfg's use it, some don't. IIRC Weins near Grandmound does not and reselling their homes is a PITA.

My advice--do tons of homework and talk to as many owners as you can.

Oh one more thing: Because of the tone of the wood, the interior will seem very dark. Make sure you have a spot with lots of light or your wife will suddenly talk about wanting to paint the walls white, which defeats the purpose of a log cabin. Another issue--treating the wood. The place will be uninhabitable after you apply new treatments to the interior for at least a good week and will have a chem reek for a month or two after that. One more-- Service techs like cable installers, plumbers, etc will want to drill thru the wood to save themselves time & money. Also a no-no.