Board Thread:General Discussion/@comment-25854073-20151201070137/@comment-26044650-20160102233332

QuietCool wrote: Christ, I'm not even close. I'll go out on a limb here and say that sitting on your butt for 3-4...even 5 hours to end up with only 6-7 Millon coins can be daunting. Even when you upgrade certain treasures to give you crystals, that takes plain luck. If anyone can relay some tip tips, I am all ears. If you're hurting for Coins, you can check out a couple of places on this Wikia: Coin Farming or check out my blog post here.

There's nothing wrong with upgrading your Crystal generating treasures to +3 and leaving it there, as it is always a 100% garauntee for upgrading treasures to +3. If you want, you can try pushing it to +6, but after that the success rate really drops.