I should probably have sold my account from when I was 13. Level 86, had dragon armour and many millions from running my own lil rune making operation. I paid people in game gold to run backwards and forwards with rune essence and allowed me to keep making runes quickly. They made about 50-80k an hour depending on how big the queues were as sometimes i'd have over 25 people doing the run.
In the end I gave it all away to a friend to stop my self from going back on it

. Still have the account though, just no items on it. I felt pretty bad ass using my blood stones (costing about 1-2k a spell) to kill people in a few hits in the arena and that CTF area. Such good times.
I imagine that there has probably been massive inflation since I played and things are a lot more expensive then they used to be. I remember buying one of the first granet hammers in the game for 5mil and it going down to 250k within about 3 weeks.