Buying tobacco for UK vendors


If you are in the US, or other countries.. what benefit have you found that buying from a UK provider grants you over any other vendor.
Have you found that their are additional costs entailed? And if that UK vendor offers a product not readily available elsewhere.. is that additional cost worth it?

I've found that more and more vendors are "charging more" because of taxes that their governmental entity push on them. Is there a point that you will simply say "enough is enough" and find another vendor... or simply decide on a similar cheaper product?