Oh yeah, I'd make most of my money off water alone. But I mean have interesting effects happen. Have a Water Merchants like group come and open a mission to deal with them. Barter, buy them out or just end up taking them out. Something interesting like that would have been so satisfying and worth it. Hell, make me fortify them because I KNOW a group of raiders are coming instead of them just attacking. Worst part is, I can show up and everything I installed will take them out easily. But if I don't show up, there's tons of damage done.