Mattress Mack cashes in huge on Astros, and a cornucopia of conferences and webinars

Jim McIngvale is $75 million (U.S.) to the bettor. . . er. . . bettor. And 'tis a busy week of banter about sports betting and responsible gambling.

The Houston Astros, World Series champions for the second time in five years (everyone stand up and give the ‘Stros a bang-the-garbage-can ovation . . . )? Jim McIngvale, aka Mattress Mack, who cashed in almost $75 million large (Amarican bucks) after wagering $10 million on Dusty Baker and Co. to be MLB’s top dog in 2022? Or McIngvale’s recent customer…