I'm in Hong Kong at the moment and just walked by a die cast/toys shop called 'Hung Hing Toys' in Wan Chai. They have some really cool things, but I have no idea if the prices are reasonable, most are between 50 & 150 HKD ($6.5 -> $20 US) with some really expensive ones (Takara Tomy limited 1:18 I think) for around $70 US.

Some pictures (I don't know if it was appropriate, so just took some snaps):

I don't have LaLDC posting privileges, so that's why this is on Oppo