The only reason a single floor reward could be this much, could be attributed to two reasons, the first was there were no rewards for the next floor, or the next floor was ridiculously difficult.
Usually, he would have observed, and kept silent, however, since he didn't intend on helping the students out by revealing his true powers in the ancestral tower, he could only give them hints to make them stay on high alert.
The students furrowed their brows for some time, before pushing what he had said at the back of their minds, of course they found it strange, but then they also had to remind themselves this wasn't just an ordinary ancestral ground, but that of a royal family so it was only natural they received this much rewards for just a floor.
With the exception of Ainz, everyone thought it was normal, and simply focused on the rewards in front of them, the students neared the hill of rewards, and began to choose items that could be useful for them.