THEY are homes away from home and could turn out to be real estates next boom. A cross between hotel rooms and homes, real estate management consultants are increasingly looking at service apartments to solve the housing crunch faced by corporate expatriates who have to make India a base from anything for a week to two years or more. Says David Fowler, general manager, Colliers & Jardine, the Boston-based real estate transnational: "In the next three years, I see between 5,000-8,000 service apartments coming up in India with Delhi as the thrust area with around 2,000."