I'm not sure there's a specific reason. 5 years is a long time (for internet years). I guess I just wanted to shut it down before it wither and die. I also wanted to explore other options (e.g work on new, different things).
Haha, I went for the wither-and-die approach myself.. end result is the same, and inexplicably it's still sending "sufficient" funds my way. Major props, next time I shouldn't miss my Penang flight.. Phil ;)