I personally am thinking of getting a Cintiq 22HD ( it's only 1700€ here ) because of my job which requires me to ink several pages a day. And I just need to save up for 2 months and I can. But the Hanvon is something I might concider as well. But I'll need to try it.
Since I need it only for lineart and inking ( cause when I paint digitally , I like NOT to see my hand ... so my Intuos 5 is enough for that ) I might go with a smaller version than the Cintiq 22HD that I was planning to buy. The hanvon seems to be very interesting. It'll be that or the 12wx , even though that cintiq is almost 6 years old.