Definitely go, even if only to see your brother and spend time with family. Speaking from experience and sorrow, I say you need to treasure every opportunity. Take in the DuQuoin Fair, just to see something different.
Don’t get your hopes up for Snoop to put on a good show. He does an absolutely awful live show. Saw him in St Louis a few years ago at Lou Fest and he was brutal. People were walking out in droves. The subsequent reviews in the Post-Dispatch ripped him pretty good. Then, after more reading, I found that it’s now a consensus universally that his live show is terrible.