Interesting concept. I read about it in Tara Road. In the US, typical places to house swap to are California, Florida and New York. I am sure there are other places that are of interest also. Now this concept has been taken a step further to "swapping homes for good". It still looks like a real estate transaction to me. Although certainly a unique transaction. I think this would work better when the homes are priced similarly. Would you be interested in buying the home of the person that is buying your home if it is the home and the location that you desire?
Many times people are upgrading or downsizing or relocating due to employment, education, family etc. What are your thoughts?