The auction was in full swing, and Dante acquired numerous useful items that could either enhance his followers and family. Very few things in the universes could help the current him, so one shouldn't expect much from that.
Dante could only really get new things through three methods. Firstly, increasing Quantum Entanglement's grade and acquiring new amazing abilities. Secondly, trading with the Black Spire in the First Gate. Thirdly, drafting and augmenting quantum worlds to create special items for himself.
The event lasted for more than a few hours, but it was short compared to similar events of its scale, and especially for such a hyped-up spectacle that almost everyone worth their salt was paying attention to.