I have to agree with you while I am not a Runescape fan (Truth be told I HATE the game most days) I am however a Jagex fan for several reasons.

1st. They had the balls to get rid of RWT, took the fallout of removing unbalenced trading and moved onwards.
2nd They release decently high quality content (compared tothe existing game) very often.
3rd. They have hit on a subcription model that works well. Smaller f2p section supported by adds that recieves a small number of updates. Larger members section that is updated often.
4th. Game is acessable from almost any computor that can load an internet browser but also has a higher graphics quality setting for mid-high range machines.
5th. The sheer number of payment options they make availible in a huge number of diffferent countries is astounding.