so you wouldn't replace a helmet if it wasn't cracked, but you wouldn't buy a used helmet even if it was uncracked....
is this an unexamined double standard? if its good enough for me to wear it should be good enough for someone else. although i did retire a helmet with no visible defects just because it was 10 yrs old, I don't think the Elios has been around for more than 3 yrs...