We have two log cabins on site here, and one of them has just changed hands, so I can tell you some of the issues that came up as the two parties negotiated.
The biggest was longevity. This one has been here for 12 years, and if the expected lifespan is 25-40 years (depending on some technical choices, and how well it has been maintained, I understand), then some of the original value can dissipate in a way that does not happen (at least, not in 12 years, it doesn't) with a conventional house.
As a living space, the cabin in question is delightful. When I moved here there were 3 properties I would have been happy to take, and that was one of them. Yes there is a lot of wood inside, and unless you use light pine to build, and do - and maintain - the UV-protective varnish or oil covering, it goes darker and somewhat orangey over time.
I actually have a lot of pine in the flat I did move into, and have not yet done the oil/varnish thing, but have been thinking recently that it has darkened enough now. It was very very pale at first, 3 years ago, and is now just a little darker than fresh beech, which I like. So I may cover it with the UV-protective product, or I may let it carry on until it is too dark for me and then paint it with a chalky sort of matt paint.
Going back to the cabin, there is a very nice feel to the space. It is extremely well-insulated, needs very little additional heat beside the sun streaming in the large south-facing window, even in winter. (But this is North Cornwall, we don't get winters like you do up there!). It always feels cosy and comfortable.
As a dog owner, I prefer wooden floors, so would not want to carpet anyway.