Board Thread:Questions and Answers/@comment-2189621-20140108165222/@comment-5708413-20140119095317

Well - another way you could think about it is the portability of the game. You already have a BTD5 on the PC - and it's for free. If you get it on iPad, you can be able to play it wherever (provided you bring it where you go).

And also, like SW said, more people working on the game = more chance of update. Basically, with all the new updates on iOS, you can now get the Bloonchipper, Monkey Engineer, and Monkey Sub, which makes Deluxe more bad since it's not exclusive to 1 game. Not to mention the Monkey Lab and Tier 4 upgrades for Specialty Buildings - which should make up for the free premiums of Deluxe.