Indeed. Not to mention the potential problems with warranty and shipping costs in case something goes wrong (broken unit f.exmp).
I live in EU and only buy from European resellers because of warranty issues.
Hifiman has a warehouse/shipping center in Europe. I have bought in the Hifiman store a headphone and there is absolutely nothing to complain. I was just wondering about the high shipping fee within Europe. After the purchase I contacted once the Hifiman support and they were very friendly and very helpful.
I would defenitely buy there again.
The only downside is if you buy for example an open box HE400SE for 89$ and at checkout you have this high shipping costs of 49$ additionally on your bill.
I saw today that on Amazon there is a Hifiman shop as well.