The cabin is about 20 years old and approximately 1600 square feet. I think the original kit was through the company Real Log Homes. The logs looked to be put together sing single tonge and groove with some type of insulation strip built between the logs. No chinking. I asked about the roof and was told that it was some sort of "spray foam" between the ceiling and roofing material. I guess I'm wondering how to compare the value of a lincoln log home vs. a convention home, i.e. how do I know that I'm not paying say 10-20K over the value of what it is worth? It seems to be like trying to value an antique, it all depends what someone is willing to pay for it. With a conventional house you can pretty much see what the going price is of other homes in the area. Like I said before, it's near a lake and has a good place to park a boat. That's more than I have now. Thanks for any other advice. One other thing. I can't get a straight answer from anyone regarding how well the walls insulate. I hear R7 for 8" logs as compared to R-21 for a regular house. Then the log home guy tells me that you can't compare R ratings. Why not? Do these log homes tend to be either really cold in the winter or hot in the summer? I'd really like to hear some first hand experience.