Singapore is 30% more expensive across the board than what you will pay in the US (even after haggling) Singapore overall is overpriced. Tokyo is no better. It should be mentioned that in terms of newness, the last few years I have found that cutting edge stuff I've gotten in the west is actually about 3-6 months AHEAZD of SE Asia. Tokyo has a lot of new/cool stuff but it is expensive and often proprietary to Japanese systems.

The best deals are to be had at the low end of the spectrum in China/HK for things like no name all region DVD players ($50 with every feature you could want -- $75 w/progressive scan), DVD-R for like $200 and similar type things.