I just purchased a Mac 512k and a early SE computer. They were sold at auction with a note stating that they were developer computers released months before being sold to the public. If this is the case would this make them more valuable? I have not received them yet so I can not look up the serial numbers or take a look inside. The 512k has a hyperdirve also! It also boots to a checkerboard screen which it looks like that could be a bad capacitor. They obviously need cleaning, I would like to at least get the 512k working. They have the original packaging and bag also which is great. After shipping and fees I will have paid a little over $200 which I hope was a good decision. Any thoughts?