Many savvy private aviation users assume all jet cards are pretty much the same. I can tell you they are not, and while there are many good choices, the right choice depends on your needs.
Buying a jet card or a prepaid private aviation program has many benefits, mainly not having to go to the bazaar everytime you fly as you would with on-demand charter where you have to not only compare prices, but the standards for the planes and pilots being sourced, repositioning fees, and extras such as de-icing in the winter. With most jet card programs, it also means getting guaranteed availability if you book within a contracted lead time, 24/7 customer support and service recovery.
VistaJet is planning to abolish ferry flight fees for new Program customers globally as it extends the waiver to South America and Australia. An announcement is expected next week during EBACE in Geneva.