I'm in the process of trying to pick out a few cameras, Hikvision brand. From reading through the forum some say the US and Chinese cameras are the same. It appears the Chinese version may have some possible problems with the firmware. I see many people here trying to update the firmware and having lots of problems. Why would you need to upgrade the firmware on a new camera? I went to Wrightwood Surveillance website and found they sell US and China versions of the same camera, DS-2CD2032-I HD 3MP 4mm. The US version 145.99 with a one year warranty and China 99.99 with 90 day warranty. I know they can be purchased elsewhere for less. My question are the US and Chinese versions the same cameras, quality/materials, aside from the firmware and warrantees? Thanks Bentley