Yeah, it was a big deal when they made it legal here. Bars, restaurants everywhere started doing them like immediately. Now it's rare to find a place that doesn't offer some kind of happy hour special.
Gotta say, I haven't really noticed any of the problems occuring that the wiki article mentions was the reasoning behind most bans myself. Haven't seen any news reports about those things since the laws changed either or anything.
That's a little bit symptomatic of your biases. Laws against happy hours are far more a bible belt thing in reality than a nanny state thing (even if some of the reasons touted publicly are nanny state-ish).
Gotta say, I haven't really noticed any of the problems occuring that the wiki article mentions was the reasoning behind most bans myself. Haven't seen any news reports about those things since the laws changed either or anything.