I don't. For me to get a nostalgia rush I need to go down to the Computer History Museum and see yet older stuff. Nostalgia isn't a function of quality, but of age.
Douglas Adams expressed this well:
“I've come up with a set of rules that describe our reactions to technologies:
1. Anything that is in the world when you’re born is normal and ordinary and is just a natural part of the way the world works.
2. Anything that's invented between when you’re fifteen and thirty-five is new and exciting and revolutionary and you can probably get a career in it.
3. Anything invented after you're thirty-five is against the natural order of things.”
For me the stage that came after this is, "Well, change is going to happen, so either I need to get off the merry-go-round or I need to learn to like it." Geocities and FTP clients are as dead as fan-fold, green-and-white line printer paper, and for the same reason: we found better ways to serve the same needs.
Justifying one's nostalgia by pining for the days of 14.4 kbps modems doesn't make a lot of sense. If they were good, then surely my first modem, a 300-baud acoustic coupler was better. Although I feel a tug of nostalgia when I see one, it wasn't better. Optimizing to save a resource we have in abundance makes as much sense as depression-era grandparents saving bits of string for possible reuse. It wastes that most precious of non-renewable resources: your time.