Surface Duoの初代ってAmazon.comだと $329.00 なんですねぇ。
円安さえなければな～

Amazon.com: Microsoft Surface Duo 128GB (Unlocked) - Glacier : Everything Else
https://www.amazon.com/NEW-Microsoft-Surface-128GB-Unlocked/dp/B08JTDPRM1/ref=sr_1_1?crid=3BLUYW1IYF2H6&keywords=Surface+Duo&qid=1664777260&qu=eyJxc2MiOiI0LjMzIiwicXNhIjoiMy42NiIsInFzcCI6IjMuMTEifQ%3D%3D&sprefix=surface+duo%2Caps%2C222&sr=8-1