Money maker
While Lex was wondering what he was about to encounter, various things were happening out in the universe. Even on a smaller scale, the Inn itself was constantly busy, so much so that it was impossible for Lex to track everything that was happening in it all the time.
Naturally, when something important happened, he would be notified or updated, but for the mundane or common things, he would not pay too much attention. As of late, even his MP accumulation was something he paid little attention to.
With the amount of MP he was making, he did not need to worry about running short any time soon. But even as far as knowing he had a lot of MP went, if Lex were to check his balance right now, he would be greatly surprised for an additional 500 billion MP had suddenly appeared.