>>4320165>>4320160If you want a quick release mechanism, spend the money. In any other case, get something cheap, as long as it's comfortable.
For lighter cameras I really love paracord straps. If you sling them across your body they make it very easy to get your camera up to your face because they slide easily across your clothes. They have a small surface area on your body, though, so heavy cameras can become very uncomfortable with them.
They're also not adjustable, so you need to know the length you need in advance.