I was so confused the first time I heard the song that plays with the Catherine costumes. I'd completed the game, yet never heard that song. After looking up where it came from, my second thought was that it most definitely makes a better battle tune than a tower climbing one... and it makes a pretty freaking good tower climbing one.
Persona 5 is most definitely a fantastic game! Even having played P4:Golden, SMTIV, SMTIV:Apocalypse, and both Cold Steel games for the first time within the past year, each of which have provided me with some of the best JRPG experiences I've had in years, P5 easily stands out above them all. Atlus did a fantastic job, and I absolutely do not regret spending the extra for the Take Your Heart edition. Nor do I regret my desire to buy all of the costumes just to support them more.
While I absolutely understand the fear that it could go to their head, resulting in scummy DLC practices, I'd say there are two major differences. First, they actually made an extremely solid, polished, and complete game that absolutely stands on its own without any kind of added content. Second, it's all purely cosmetic, and doesn't block any important story elements behind a paywall. I totally understand the disappointment of communities (particularly of those like Tales) who feel disappointed that neat bonuses like costumes are now something you pay for, but having seen games where content was removed from the game to be sold back as DLC, or significant plot elements were only explained in DLC, I'm all for cosmetics only.
Not that I'm against content DLC if done well - Artorias of the Abyss was fantastic! In fact, if Atlus DOES decide on an FES/Golden enhancement to P5, I hope they release it (or at least, have the option of obtaining it as) DLC. While I don't mind paying for the TYH edition and costumes, I'd feel a little salty if all of that went to waste because they announced a new model later this year.