Thinking about building a spec home? Although they're loathe to admit it, Baby Boomers are rapidly becoming senior citizens. However, just has been the case throughout their lives, the fact that Boomers are entering their golden years has made the senior market the fastest segment of the real estate market today. If you're a builder, this can mean more sales for you, but you'll have to do some target marketing to attract Boomers to your homes.