Seems like the best thing for curious people would be to buy a second hand pair (cheap) and then send then off to Zen who only charge you USA guys $460 dollars which, at less than 300 of my British pounds, sounds like a pretty hot deal to find out if those rave reviews are right.

You'll almost certainly get back what you paid if you sell them on to anyone who can't be bothered to go through that same process.

If I was in the USA then that's what I'd be doing.