I think you're missing the point of the golden/silver/bronze ages of comic book. Not all valuable comics are in the golden age, nor are all golden age comics valuable. It's like this (these are rough estimates, I'm not a huge comic fan):
Golden Age - 25% of comics have significant value while the remainder are marginally valuable.
Silver Age - 5% of comics have significant value while the remainder are marginally valuable.
Bronze Age - 1% of comics have significant value while the remainder are marginally valuable.
Modern Age - Very few comics that go above current face price (as in, the average price of a comic today).
Each age will have its fluctuations but the idea is... if you grab a random comic from each age, there's a higher chance that one from the Golden Age will have significant value versus one from latter ages. Sure you can name a few rare games from recent generations, but I bet you're probably forgetting the countless number of worthless shovelware (like, basically 70% of the Wii and DS library).
Plus, the Golden Age wasn't the start of comics. Comics, if you take comic strips into consideration, were around at the beginning of the 20th century. But the Golden Age wasn't until the late 30s. So I'd argue that arcades/Atari era are like comic strips- both were popular enough and had moderate appeal. Then stuff like Action Comics and Superman revolutionized the comic book industry and sales exploded.
With games, it wasn't until the NES and SNES that the industry saw a rapid expansion period... just like Golden Age of comics, hence we're calling it the golden age of games. Granted, you could argue that the Atari era expanded the industry but I'm pretty sure NES era sales were significantly better. But often do you see kids these days talk about Atari games/characters vs talk of NES/SNES games/characters? The NES/SNES era is still remembered thanks to long-standing series like Mario, Zelda, Sonic, etc. whereas the Atari is basically unknown.
No, you obviously can't parallel the two things exactly... and that's not what we're saying. We're just saying that the Golden Age of games are probably in the NES/SNES era. Plus, there's one major variable today: the internet. This could drastically take things in a different diction in 10 years.
Yeah, like I said, I missed the point of a golden age but I still don't agree that video game values will echo the trends we've seen with comics. When this generation has aged as much as the 16-bit era, I can practically guarantee that the percentage of valuable games from now will meet or exceed that same percentage from then.