You don't buy the game so you can stare at the map.
Apparently in your world, stopping to look or listen to the scenery isn't common practice.
You buy it for the levels, and if the levels lack new music, it means laziness on the developer's part.
Oh, I thought I PLAY LEVELS not LISTEN TO THEM. I can't listen or use the world map but I HAVE to sit and listen to every LEVEL music piece? By the way, kid, the overworld, athletic, and snow music are all new.
How would you like it if every Zelda game used the Zelda 1 dungeon theme every time, just slightly remixed?
I'd be freaking fine with it.
How would you like it if in every Sonic game, the first level always used Green Hill's music?
What Sonic game DOESN'T have a reference to Green Hill?