Nostalgia is a hell of a drug.
There are some old games that I revisit and still enjoy like I used to. Carrier Command is one such game. I still break it out to play every few years. Sim City 2000 is another game that I still enjoy playing but my style of play is much different now. I make LONG term plans when laying out and designing a city that I never did when I was younger.
I tried playing the original Sim City and yeah, it was better in my memory than it was to play again. I won't even try Falcon 2.0 because I know it will be awful to play now.
Some shooters hold up well because my newer hardware can support much higher graphics settings but then some others don't hold up because their physics were so primitive. It's really hit or miss.
I still want to eventually get around to replaying Elvira: Mistress Of The Dark again.
All in all, I don't regret any of the games I revisited.