I think I cracked the Covetous turn-in points formula, or at least the way it works. The formula seems to follow a six-four-six-four loop following Wave 2.
WAVE 1-2: 0 pts each
WAVE 3-8 (6): 1 pt each
WAVE 9-12 (4): 2 pts each
WAVE 13-18 (6): 3 pts each
WAVE 19-22 (4, etc...): 4 pts each
WAVE 23-28: 5 pts each
WAVE 29-32: 6 pts each
WAVE 33-38: 7 pts each
WAVE 39-42: 8 pts each
WAVE 43-48: 9 pts each
WAVE 49-52: 10 pts each
WAVE 53-58: 11 pts each
WAVE 59-62: 12 pts each
WAVE 63-68: 13 pts each
WAVE 69-72: 14 pts each
WAVE 73-78: 15 pts each
WAVE 79-82: 16 pts each
WAVE 83-88: 17 pts each
WAVE 89-92: 18 pts each
WAVE 93-98: 19 pts each
WAVE 99-102: 20 pts each
etc...
For example WAVE 20:
WAVES 1-2 = 0 pts
WAVES 3-8 = 6 pts
WAVES 9-12 = 8 pts
WAVES 13-18 = 18 pts
WAVES 19-20 = 8 pts
WAVES 1-20 = 0 + 6 + 8 + 18 + 8 = 40 turn-in points
WAVES 1-25 = 63 points
WAVES 1-50 = 250 points
WAVES 1-100 = 1,000 points
I think if you can manage to get to WAVE 100 you probably don't need any of the arties you can get ;P.
WAVE 1-2: 0 pts each
WAVE 3-8 (6): 1 pt each
WAVE 9-12 (4): 2 pts each
WAVE 13-18 (6): 3 pts each
WAVE 19-22 (4, etc...): 4 pts each
WAVE 23-28: 5 pts each
WAVE 29-32: 6 pts each
WAVE 33-38: 7 pts each
WAVE 39-42: 8 pts each
WAVE 43-48: 9 pts each
WAVE 49-52: 10 pts each
WAVE 53-58: 11 pts each
WAVE 59-62: 12 pts each
WAVE 63-68: 13 pts each
WAVE 69-72: 14 pts each
WAVE 73-78: 15 pts each
WAVE 79-82: 16 pts each
WAVE 83-88: 17 pts each
WAVE 89-92: 18 pts each
WAVE 93-98: 19 pts each
WAVE 99-102: 20 pts each
etc...
For example WAVE 20:
WAVES 1-2 = 0 pts
WAVES 3-8 = 6 pts
WAVES 9-12 = 8 pts
WAVES 13-18 = 18 pts
WAVES 19-20 = 8 pts
WAVES 1-20 = 0 + 6 + 8 + 18 + 8 = 40 turn-in points
WAVES 1-25 = 63 points
WAVES 1-50 = 250 points
WAVES 1-100 = 1,000 points
I think if you can manage to get to WAVE 100 you probably don't need any of the arties you can get ;P.