I bought mine 'used' off eBay for about £400. As long as its in its original packaging then where's the problem? Everything we buy has arrived in our home via planes, trains and vans anyway.
Thing I don't get with the Radius is how the RRP jumped from around the £700 mark (for the maple) when it was released, to the prices they are quoting now. If there is a so called Mk1 and Mk2 version, then be careful about the fact that you might simply be paying virtually the same RRP for a 5 year old Mk1 model as it was on its release.
In terms of build quality, its two bits of veneered mdf with a couple of rubber grommets providing the isolation. If they have upgraded to a Mk2 version then I hope they have improved the bearing, beacause at over a £1000 there are decks that p!ss all over it in terms of quality i.e. The Gyrodec. The bearing and motor left a lot to be desired I felt, but I could never fault that arm though.
I replaced the motor on mine with an Origin Live one and it was a huge improvement. Sold the deck on for £650 in the end with that addition so it cost me nothing to own it for 3 years or so. Please don't think I am trying to put you off this deck, I am just saying that the one I owned was in no way at all worth an RRP of £1300 brand new. Not a chance.