I started with 500k. To track my exact winnings, I purchased all items asked for while questing from either Marapet or User shops. I did not use any items I already owned.

Quest Count at Start: 6,804
Quest Count at End: 6,929
Quests Completed: 125
Rune to Quest Ratio: 1 in 14

Runes Won - Value:

Rune B - 420k
Rune E - 388k
Rune F - 498k
Rune G - 485k
Rune N - 315k
Rune P - 450k
Rune R - 396k
Rune T - 270k
Rune W - 419k

Total approximate Value of Runes: 3.641m
Total approximate Profit: 3.141m