I have New Zealand citizenship with a New Zealand passport. Having lived here and worked here for 18 years it was a reasonable move and I more than qualified. I paid NZ$470.20 for the citizenship and NZ$199.00 for the passport.
I'm not going to give up my US citizenship because that triggers a process where they put me under the microscope and while I think I'm clean, I don't want to risk some over-zealous IRS agent deciding to extort me, or some other agent deciding I said something online that makes me a special target of some secret government program. So I will keep filing my FinCEN and my US tax returns every year, where basically I owe $0 each time. PITA though.