For your $60, you get:
The base game
All the DLC from the base game
Many enhancements with the base game
New content sprinkled throughout the base game
A new scenario with a new playable character, new story, new dungeon, new endings, etc.
If it was a port to a new console, no one would be complaining. On the same console, I see the complaints, but I choose to look at this way - I've spent $60 on many games that ended up being a total waste since I ended up not liking the game. Spending $60 to replay an enhanced & expanded version of one of my favorite games ever, one that can easily take 100 hours to play through? That's a safe purchase.
If you want the game, but don't want to spend $60, then just wait for a sale. Atlus does digital sales regularly.