"if I booked a round-trip ticket and simply didn’t use the second half of it, it was actually cheaper than buying a one-way ticket."
Say what?
This reminds of the train tickets here in the Netherlands. A return ticket was a lot cheaper than 2 one way tickets. A couple of years ago they fixed this problem. But in a sneaky way, they raised all prices.
well a return ticket should be cheaper than 2 one way tickets but in my situation a return ticket was cheaper than 1 one-way ticket.