Now that I think about it, I should have framed the issue differently. Its true, much of this all comes down to opinion, and in that case, it seems to be an impossible issue to resolve. But I think what we can do is lay out some of the advantages that classic gaming has over modern gaming.
I'm keeping in mind my audience here. They are typically in their early 20s now, and their first experience with games might be the N64/PS1 era. I suspect anything older than that is a mystery to them. Also, [forgive me for making these wild generalities about an entire generation] they seem to me to be... a bit uncritical of the messages that they are receiving from television. Namely that technology and modernity has always improved their life, the obsolete is irrelevant, the newer is better. I honestly think that most of them would laugh at the idea of having fun playing the original SMB, or god forbid, Space Invaders. You must help me convince them.

What are some of the advantages and disadvantages of classic gaming?
What about modern gaming?