Have you seen what other games are charging for name changes? it's about the same if not more. Unless you want to play the mindless clicking java game made by Jagex, then your most likely going to be paying for your name changes. Paying money for extra perks is part of life, unless you choose to avoid living altogether or live on the bare necessities.
I'm sure most of the people complaining about money are the people without jobs or still live and mooch off of their parents, and hey I'm not hating on you just saying life is like that till you move out. get used to it or get over it are your two options.