is it a new model ? the prink site only has them (the carts) listed in the new year.
If it is new I wouldn't worry too much - you can see by the model coverage in the svp list it will get covered.
Would a refill system be any good ?
I do like the RX560, it looks same as the RX640 but the RX640 has a higher scanner res but 1200dpi is fine for me (RX640 3200dpi) I thought they would use the same ink cart, but for some reason they don't, the technology looks the same (printing dpi) and Claria photo ink system not unless anyone knows any other difference, I do need one that uses compatable ink thought as I can not afford Epson original, I know I may lose quality but thats ok for what I need.