There is probably a lot less ink in the included cartridges.
They always get you. Don't print.
I still like them because, ironically, for sporadic printing, they're more resilient than many ink cartridges.
So far, I haven't experienced any clogging (dried up ink in the print heads) or the printer resorting to ink consuming processes every time it's turned on after not having been used for a couple of weeks.
This is after some years of usage where I've refilled the tanks once.