Hmm....after blowing through all my gold on the last collect 10 event and ending up at 9, I decided to go cash only for this event. Surprisingly, I had unbelievable luck and got 8 on my first day, then 9 a day later. I've been stuck there since. While a 1315/989 item would be great, the modifier is meh and I'm not interested in wasting my gold on this type of event again.