Text Message SMS --Marketing Mobile Homes

I am considering using this marketing technique at my park. I am going to have a sign made with a sms text number, to learn more about the home. If a prospect texts to my sms #, it will send an auto text back with details of the home and pictures. The question is, in a low to moderate income area, do prospective tenants use text messaging. I think they very well may. If my explanation is confusing, watch this You Tube video to get a better idea of the technology: http://www.youtube.com/watch?v=B7kd76rchbQ

I figure for around $8.00 per month it is worth a try… Thoughts??