Dream on jb! Of the 200 or so homes for sale there right now, less than 1/4 were purchased more than 7 years ago. Of that 1/4, many were bought in 98 or 99 and totally redone. The tiny tiny tiny fraction that meet the description you gave above own total dumps that could be scraped to the ground, and there are maybe a handful or two on the island for sale. Those 5-10 homes will not hold up the prices by themselves.
Most homes were bought in 2004, 05, 06, 07, and even just built during the past few years. These people must sell, and they will drive down the prices just like everywhere else.
See for yourself, all the info is at sdlookups.com