I bought one at a local store, and went on Amazon to check the prices.
Well, Amazon's selling the SDHC memory cards way cheaper than stores in Singapore, even after you factor in shipping charges. Buy more that US$125 and shipping is free to Singapore.
Transcend, Sandisk, Sony, UHS-1, Class 10, whatever. If not for the GST, camera lens are cheaper too.
I'll just buy a few backups to put in my wallet. They work well as storage devices for files.
Update 9 Aug 2012: I found out the common problem is caused by associating a payment method with the shipping address.
This guide will help you bypass Amazon.com geographic restrictions to buy the digital content you want. By digital content, I mean mp3, ebooks, digital movies, video games and other downloads.
This guide is written for anyone who uses Amazon.com outside of USA.
I spent $333.82 for shipping and handling, as printed on the Amazon shipping invoice. I had the shock of my life when I saw it.
There are 7 items on that invoice. Each item should cost only US$6 for shipping, and then there's the box charge. So total shipping should be under $50 to my country.
What happened was, I bought a lot of stuff. Many are still on pre-order. Amazon would sometimes ship part of the order for those items in stock.
While part of the orders are being prepared to be shipped, I decided to cancel the other part as I found new stuff I wanted to add to the order. You can't add new items to the order that was already placed since there's no Update button. The only way was to cancel and place another order. I did just that and somehow all the shipping charges from those canceled items got moved to the preparing-to-ship items.
I didn't notice the discrepancy until I stared at the physical invoice inside the box.