Why would you even post this question? I always walk thru the H/R Rooms in every casino I visit. The highest min I have seen is $500. In general, the min bet would be $100 with nme. The only one I played in was in Canada, Fallsview (new casino...couple years old) and broke in 6D for $1,000. Played approx. 3/4 shoe and was up $900 and left faster than a speeding bullet. I also have noticed that the players were basically no smarter than the green chip players in main pit. I counted and deck went positive and I put a final bet of $800 out, won and was history after that. I also played a $50 min 6D at Seneca Niagara and caught a hot shoe right off start and continued to play for a few hours with a couple thousand win. That's my total experience with the High Roller Rooms...lol
P.S Where did you see a $100k max bet, or is this a joke?