Since maintenance cost are gone (and gold isn't directly used for research anyway), seems to me like city-spamming near luxury resources early on is a very beneficial and strong strategy. The only real penalty is the unhappiness it adds, but the +5 bonus for each luxury resource you improve easily takes care of that. There's also the issue of culture - it's supposedly much harder to develop your culture with a lot of cities, but even then I fear spamming is just too strong and beneficial than earlier civs. The game clearly favors it in my experience.
Any thoughts?
Any thoughts?