If theres no advantage over paper flashcards then why use such an expensive device instead of $1 paper? Statistics are pretty much the only advantage I can see

If theres no advantage over paper flashcards then why use such an expensive device instead of $1 paper? Statistics are pretty much the only advantage I can see for using an iPad here instead of physical notecards, unless you have so many notecards that it would be a pain to carry them around which seems like a very obscure use case to me.