Reallocated sector count continues to climb

The drive is only 100 days old, so I feel if it's not worth carrying on using, I should be able to return it for replacement. But as I understand it, Seagate will only deem a drive faulty if SeaTools says it is. So it would be useful to know what threshold SeaTools uses for deciding a drive has too many reallocated sectors. From this thread, it sounds like it needs at least 100, possibly over 1000. So it's partly down to cost, and partly a point of principle. I want the drive to get to the point where I can return it to Seagate, otherwise if I just keep replacing them when they have reallocated sectors, but aren't deemed faulty by Seagate, they're being financially rewarded for making poor quality products.