I'm lucky to have entered the @drugwars game in the first days. Actually I started with my main profile but did some mistakes at first time so I started again with an alternative account that I have. I'm really happy with the ROI that it has given to me, but day by day it is going down. Let's see the numbers:

Received:
45.320 STEEM from daily
24.865 STEEM from heist
0.000 STEEM from referral
Spent:
26.439 STEEM
Total:
43.746 STEEM
First transfer was before 21.73 days.
Your ROI per day is 12.22 % and you are earning approx. 3.23 STEEM per day.

I spent 26,439 Steem in instant upgrades for drugs, alcohol and weapons buildings and after this I had enough to upgrade without paying any more Steem, until 5 or 6 days ago when it was too expensive to do more instant upgrades and had to upgrade several levels of the storage buildings before upgrading the other buildings. If I had wait to have enough drugs, weapons and alcohol to upgrade the storage, and then the other buildings I calculated that I had needed about a week to increase in 25k the daily drugs. Considering that in one week the value of the drugs could have gone down a lot and that battles could have been enabled again I thought that the best thing was not to upgrade any more buildings and put the daily drug production into heist. I think it was the correct strategy.
After enabling again the battles I don't have any intention to upgrade any other building, actually it is impossible for me to earn more than 53k weapons and 60k alcohol (the 25% safe). Today there came 4 people to attack me and even that have a good defense they stole me 35k weapons and 67k alcohol, so it is impossible to upgrade more buildings without paying Steem. Paying to increase my drug production in 25k could cost me 43,49 Steem!!

So, from now on, I'm going to put all my daily drug earnings into heist and see how many more days I can earn from heist + daily production. I'm in green and happy for the earnings but I don't see any light on the tunnel to invest any more Steem.

I'm also asking myself if people who joined the game one or two weeks later than me have any chance to have earnings. What do you think about? Did you enter late and see few chances to earn Steem?

I'm not gonna lie, I entered the game just to see if I could have some ROI. I think I did the good steps and now I've nice earnings, but I'm not gonna loose time and money if I'm not really enjoying the way it goes now.