Because we enjoy a 'free' health service
while in the USA it would cost you a minimum of $ 7700 per annum as an individual.
Health insurance in USA is often extremely expensive. Why is that and what is the average cost? Dig into the data here.
www.william-russell.com
The USA has little if any sales tax in most States, where we have 20% VAT.
£ 288 here, taxes and shipping included. Though Paypal fees/exchange rate adds around £10
https://hifigo.com/products/topping-e70?variant=43527230849263
Delivery takes around 2 weeks, mine is on it's way.
Stick it in your basket and leave it overnight they will give you a 10 $ discount, on your first purchase.