I love honey, and it’s clever stuff (you can keep it for years and it won’t go off), but I would never pay the outrageous prices for this. I don’t believe all the hype whatsoever (there’s no scientific evidence of ‘special’ properties), and it’s certainly not worth worrying which type you should get. Worry whether it’s worth spending all that money at all, or whether you should just treat yourself to your favourite supermarket variety.
Interestingly, the Wiki article on it (I know Wiki isn’t infallible) says that due to the huge price premium, a high proportion of “Manuka honey” sold around the world is fake - i.e. it’s just any old honey, labelled-up as the higher-priced Manuka.