Oh wow this topic is three topics now.
Okay, let's get this out of the way first: the only games which I think don't have replay value are bad or mediocre games. Any good game is playable more than once, they don't need tons of achievements or unlockable Santa hat with anime girl shaped tassle on top collectathon schlock to add "replayability." Or, alternatively, you could just never replay any game ever, which might actually be the smarter thing to do given how many awesome games there are out there but fuck that.
And games that are bad due to my tastes changing...a lot, actually. A huge example off the top of my head: in 2007, I thought that
The Legend of Zelda: Twilight Princess and
Super Paper Mario were awesome amazing games, to the point where I put what must have been a hundred hours into making a fucking speedrun of the latter and submitting it to SDA. Today I can't stand to even
look at either game, let alone play them. Awfully designed garbage. Likewise, when I was like ten years old I loved the shit out of the
Harry Potter Game Boy Color games, then I tried to play one again about six months ago and it was pretty bad (though the second game still probably has some of the best music on the GBC, shame no one's ripped it in full.)
Sonic 2.
EarthBound.
Harvest Moon. Tons more.
IMO, 2d games tend to age better than 3D, ALA Donkey Kong, Zelda I, II, ALTTP, Final Fantasy III, Pac Man, etc. The early 3D games look especially bad.
Mechanically I think both kinds age equally well, but this is definitely true aesthetically. I think it's due to stylization, which is a quality that's always inherent in 2D games due to them being, well, 2D. Most likely, heavily stylized games like
Wind Waker or
Okami won't age nearly as badly as stuff like
Deus Ex or
Tomb Raider have. And of course, people will still love the shit out of
Metal Slug's visuals a hundred years from now (if the game isn't being directly upscaled to 160000x90000 by then...)
That being said, I kind of like the really-early-3D aesthetic. Stuff like Wolf3D,
Doom, etc. Shit only gets bad during the jump from sprites to polygons.