I live in a condo. It was built in the 1970s, with the kind of high quality building where right angles weren't really a requirement, just kind of a suggestion, cement subfloor needed to be smooth enough to cover with carpet, not actually good enough to replace with wood later, redwoods and other trees were planted too near the buildings so we're having root problems, etc. Even though some of the folks have been here since the beginning (and it's only a 32-unit complex), nobody's got a bloody clue where lots of the wiring and plumbing is. We know where a few parts of it are, but how the plumbing or electricity gets between the upstairs and downstairs units is mostly a mystery, and when the cable company wanted to replace the old analog system with digital, they just ran new cables on the outside of the building and made holes because they couldn't figure out what was going on inside (so I've got some really convenient cable jacks that aren't on the new system.)
But yeah, conduit is the way to future-proof any communication technology that does need wires. Also, heating/cooling ducts can be really useful (both for themselves, and for adding in wire later if you didn't have conduit.) I currently live in a part of California that has lots of buildings with electric heat (lowest upfront cost to the builder, and my annual heat costs are higher than when I lived somewhere with actual winter), and we don't really know how the 220V line gets from the thermostat to the heater, and don't want to rip out the ceiling and walls to trace it. (Before that I lived in a house with steam radiators, which I liked, but there wasn't a way to put in central A/C.)
Putting in more sockets along the walls than your current electrical code calls for is usually a win, as is home-running them all to the electrical box if you can. I needed more power upstairs, and we had to rip out a bunch of bathroom wall and ceiling to run the cables from the circuit breaker box. Also, you should put in a circuit breaker box that's big enough to add a bunch of random things later, instead of one that just barely has room for the initial wiring.