Things I gave to DotA:
1. Money
2. Time
3. Love
Things DotA gave me:
1. Arthritis
2. Carpal tunnel syndrome
3, Hatred of Russians, Mexicans, Spanish, Finnish, and Russians
4. Broken keyboard
5. Broken mouse
6. 9/10 ready
7. Server crashes
8. 4 stacks of Russians in EUW servers on English prefrence settings
9. Ranked matches
10. Free to play but Pay to win games (I.E. - Foreseer's contract, New Bloom 2015)
11. "It's in the bag" spam (especially Skywrath)
12. Multilingual cursing - I guess this is a good thing?
13. Split second math - Reliable/Unreliable gold and gold loss on death vs. Buyback availability - This is good too
Essentially - DotA is a greedy woman, but I love her all the same.