It's 2026, so 20 years ago was 2006, and the biggest one that comes to mind is smartphones. The iPhone wouldn't launch until 2007, but the Blackberry existed, but was just very expensive. Of course it didn't have the same apps as we have today, but that was definitely something for rich people that we now take for granted. GPS navigation was also very different 20 years ago. The rich had $500 Tomtom computers for directions while everyone else was still printing paper maps. Photography was still a high end thing. An iPhone shoots better photos more easily than something from 20 years ago. A giant flat screen TV in 2006 was very much a rich person thing. Now that's like $400 at Costco. Video calling wasn't a thing in 2006 for a variety of reasons, but the equipment being expensive is the main one. These days there's a half dozen apps I can use to talk to someone on the other side of the planet. On yeah, in 2006, calling long distance was still kind of a thing. Translation is another one, Google translate came out in 2006, so just right at the cut off. Before that, a foreign language was just that, foreign. Today, I can whip out my phone and it will overlay my language in my camera view instead of hiring a person. Recording studios took a hit. A million dollar recording studio in 2006 is now a MacBook, some software, and some gear. Making music used to be expensive! Smarthome shit was stupidly expensive in 2006. I think most people still don't have that stuff, but it's much more accessible today vs 20 years ago to be able to tell Siri/Alexa/Google to turn off the lights.
Oh yeah, having a driver was very much a rich person thing in 2006. Now that's just called having an Uber account and it's nothing special. (Although if you have Zoox or Tesla Robotaxi access it still is.)
The access to information out there is stunning. The visuals for the Straight of Hormuz in 2006 would have been far more limited to rich people who actually needed that information. Today there's a dozen vibecoded play-by-play visualizations of the entire conflict.