I just want to add something that may not be obvious for everyone.
When you buy and IDN (idn.whicheverTLD), the fact that you have an idn at the second level is risky. If you buy a new gTLD (whatever.newTLD) it is also risky in my opinion, by opposition to old TLDs like .org .com .net for which the renewal price and other policies are clear and controlled. Hence, and idn.newTLD is extra risky in my opinion.