So if it were a genuine filibuster by one Senator, it works. But if we force the Dems to be there, we have to stay there too. And I'm sure there are at least 6 Republicans whose health would not allow them to stay in the chamber for a few days.
AmishDude, this is high-stakes poker! I just look at it this way: The Constitution does not require a supermajority to confirm judges. All it requires is a straight up-or-down vote decided by a simple majority. The fillibuster is designed to trump this constitutional requirement by means of simple senatorial rule-making. But there is absolutely "no-cost" to the "gentleman's agreement" of a fillibuster that the Dems are prosecuting against the President's judicial and executive nominees. We need to see the cost go up, maybe even to levels that hurt.
If someone were truly grievously ill, the Senate rules could be fashioned to exempt that person if his doctor recommends it. But all healthy people would have to show up. :^)
But I have to wonder: if someone were that grievously ill, what is he/she doing in the Senate?