The Altar usually presents a few Hero options to choose from, which seems stronger than just one random choice. However, the Heroes available are all within a first-tier limitation, with limited grades and wisdom.
On the other hand, building the first random Hero is different; there are no tier and grade limitations. With good luck, one might end up with a top-tier Hero from Red Island, and at worst, the Hero will still be within the first tier. That's why Li Yao cared so much, waiting to build the Altar before starting on a second military structure.
Of course, Li Yao was still very hopeful. What if a super boss appeared? Then, he would really make a fortune.
As for the remaining tens of thousands of parasitic drones, although they couldn't build advanced military structures, they were crucial as transport workers and for the expansion and splitting of the nests. Li Yao didn't synthesize them immediately.
