You think that buying from stardock the makers of the game is not good enough? If you buy with a credit card your insured if it all goes wrong anyway.

Lots of people form Europe and the UK have got the game from stardock you even get the bonus of having a collectors edition box - you will not get this if you wait on a UK release.
You do realise that buying on-line you are getting the physical box AND the ability to download and play IMMEDIATELY after purchase? This also means you download the most recent version with all patches pre-installed?
I have been shopping on-line for years now and I can say in all ways it is better than hanging out in shops.
As a last note if you buy form stardock all your hard earnt cash is going to the publishers and developers of the game and not to the upkeep of some local shop.