Assuming they all work OK, but yeah, might work out well for whoever bought all that...
HuCards do break though... I can only speak for myself, but I only ever hard ONE that broke on me... My fresh new TurboExpress right-out-of-the-box destroyed my Bloody Wolf HuCard because the contact pins were so tight - it was tough to push it in the first time and that was the first game I wanted to try on it after it arrived... Turned it on, nothing, pulled the card out, pushed it in again, nothing... Then tried another HuCard and that worked, so I'm like "Uh-oh", then I take Bloody Wolf to my TurboGrafx-16 where it USED to work, but now all I got was a black screen, THE END... Heh. Pretty much how it happened...