At the risk of turning this into a downer, I identify with that too. I listened to some tracks recently that I'd not heard since 1999/2000. Really upbeat music as it happens, but all I felt was utter sadness! That whole era (and specifically that time of my life and everything that was happening) is now so long gone.
Best way to look at it is, another 10 years time and we'll no doubt be thinking exactly the same about now, so just enjoy it and keep looking forward.
Haha, hear endeth the Jerry Springer sermon.