In Japan, the Yodobashi Camera chain has a web interface tied to their huge retail stores. The page for each product [1, for example] has a link to a list of stores where it is in stock [2]. If you’re in a hurry and near one of those stores, you can have it held for pickup later that day. If not, you can have it delivered.

I buy a lot from Amazon Japan as well, and I haven’t had the problems with shoddy or counterfeit products that others have reported. I don’t know if that’s just my luck or if Amazon Japan screens its suppliers better. But it’s nice to have strong competitors to Amazon in online shopping. In addition to Yodobashi, there are Rakuten, Yahoo Japan, Bic Camera, and Yamada Denki for a wide range of products, as well as Kinokuniya, Maruzen Junkudo, Sanseido, and others for books.

[1] https://www.yodobashi.com/product/100000001004349962/

[2] https://www.yodobashi.com/ec/product/stock/10000000100434996...