Yes, and they're a very niche form of transport. Nobody says they're going to take a cruise to get somewhere, they're taking a cruise to take a cruise. The journey is the purpose.

Bikes, trains, lots of other forms of transport still have massive use though faster "better" methods exist.

They all have some kind of advantages.

Bikes are good exercise, and free to run. They're good for traveling a short distance.

Trains are usually cheaper than fueling up a car to go where you want to go, so you take them to save money, or because where you're going is near a station and parking is unavailable.