As of this moment, there isn't any way to retrieve those 2,550,615 bitcoins (rough estimation), but who knows. We might see a device, or something that has the capabilities to retrieve it though I don't know how, but with how the technology is evolving right now, and on a rapid pace we might have one in the future.

As for me, I guess it's good also that when I first started to invest into Bitcoin, I saw many people using it already, and it's starting to become popular at that time. Those early adopters of Bitcoin who bought very early like you (if it's true), have a tendency to just forgot it back then because you don't know what will it be 3 or 5 or even 10 years from now. Well, 10 Bitcoin is already a huge compare to what it was when you bought it, but I guess it's time to say goodbye to it unless you remember where you stored your private keys.

With this, I remembered the person who threw away on the dumpsite his floppy disk something or a hard drive that contain private keys that hold thousands of Bitcoins.