The Leap Visitor Card is available in only a few places. It is 8€/1d, 16€/3d, and 32€/7d.
A Leap Card has multimodal fare caps at 8€/1d and 32€/7d. You can buy one at almost any convenience store. If you only use buses, the daily cap is even cheaper. And if you don’t hit the cap, it’s cheaper still.
This question says they don’t want a Leap Visitor Card, but doesn’t say why.
The only advantage I can see is that the 3-day Visitor Card is less than the 24€ it would cost to hit the fare cap three days in a row.
Is there any other benefit to getting the visitor card rather than the stored-value card?