Fuck! Why is the design of camera straps (and the hooks on cameras in general) so shit? I would have though SOMEONE would have come up with a better design by now. Basically you get a few different types and they are all shit. A round ring like the type you hang keys on. A metal clip on that can be tricky to attach and get off without damaging the body. A bit of string you loop through itself and liable to break after 5 minutes use or the normal strap your push through and then thread under a bit of plastic that holds it from slipping.I was looking for a strap with a wide neoprene shoulder/neck and easy to quick detach from the camera. Most types quick detach and leave a fastener dangling either side of the camera. Shit.The only one I have found thus far that looks OK is the one pictured where it still uses the loop through method but attached to a quick release clip. Rather expensive too for what it is IMHO.
Sounds like you've solved your own issue. Buy from eBay. It is only a few dollars and will last you a long time. Considering you'll be dropping hundreds on lenses this is nothing.