Most electronics will be the same price or more expensive. The rest will break in days. If you're looking for a cell phone, though, you'll definitely find newer, fancier ones, and a huge selection rather than the sad trickle of models we get here.
When I go to Asia, I stock up on clothing because that's really cheap, though the quality isn't great sometimes. There are certain markets where everything is really cheap, and you can find things you might find in a supermarket, like stationary, household items. You've gotta know where to look, though. In some high end shopping areas, the prices will be even higher than in North America because they cater to tourists who don't know better, and relatively wealthy people.