Also have a decent collection..
Not however happy with Singapore, who have a monthly fee for unused cards now that they not only take out of any balance on the card but also the $5 deposit. Basically making old cards a paperweight.
Also had an experience in the Gold Coast that reminded me why I don't like using credit cards.
Had a red tapoff on the 777 bus from airport, so tapped again for green, before taking LR.
Turns out that the first tap had registered so my credit card for hit for default fare on top of regular charges.
Thankfully the chatbot made it fairly easy to claim back the fee, but suspect many don't check their statements, particularly with the current 50c fares in Qld.
Whereas the immediate fare feedback and balance on a proper card would have prevented this.