Although the mobile option is nice, a responsive site allows us to create better call to action.
Adminlinku (Admin, LinkUSystems, Inc.) commented
LinkU initially made the decision to offer a specialized mobile sites, designed specifically for mobile, similar to realtor.com and many other sites. The reasons for this are a better mobile user experience, speed, since you are not loading an entire site, loading time is faster when on mobile networks and also because this would allow us to design a beautiful and cost effective site specifically for desktop users, rather than restricting options, because it needed to work on both mobile and desktop.
However, we are currently working on our new platform, which will offer a responsive option for our clients. Since design has evolved to become more "simplistic" and mobile is increasing over time, responsive sites are becoming a realistic option to use for both a great mobile and desktop experience.