Lots and lots of people are buying RS gold these days. Its ridiculous really when there are much easier and cheaper ways, and they don't even get you banned..
My mate and I found a site a while ago called RSManip. They have this sick as method of making their clients gold, which is cheap (i paid $2!) and isn't bannable.
I made over 70m in the first week i used them. genius.
The sites RSManip.com For $1.99, how can you go wrong? Like really.
Cheers.