There are only 20 delegates at stake, as I understand it. On the other hand, the race is tightening, and Bernie Sanders has passed Clinton in the overall lead among registered Democrats.
As disappointing as this year has been, I think I could be satisfied with almost any outcome that puts paid to the Clinton machine.
UPDATE: From a usually reliable Clinton supporter, Ezra Klein:
[T]he Clinton campaign has come up with the argument that Sanders has somehow crossed a line with his negative campaigning.... This is flatly absurd. The Democratic primary — including the debates — has been substantive and respectful. Sanders has, at times, bent over backward to run a positive race, as when he refused to hound Clinton over her emails. If any candidate has ever proven himself a fair and courteous adversary, it's Sanders. The mockery Sanders's supporters are throwing at Clinton is entirely merited.No one ever went broke doing that.
This is the Clinton campaign at its worst. The argument isn't just false, it also insults the intelligence of voters.