I would consider buying one.
Although, I'm not sure what you mean by "true" backwards compatibility. If you mean as far as the actual medium and OS, well I don't think Sony would use the resources for it. Nintendo made it easy on themselves with using similar but updated processors. MS has worked some magic with what they are doing and I'm quite sure they have created their own API for running the games which is why they aren't all done at the same time, due to testing and evaluation. I'm just happy they are doing it.
Gotta figure out how to set these up lol.