I've been plenty of times; now it's more (junky) parts and less bikes due to ebay. You used to be able to find a bargain now and then but now with the worldwide market of ebay the 'deals' are few and far between. Entrance is $20 per day (or so), and bring as much to spend as you want to buy. Lots of vintage dirt bikes and HD accessories, a few tool and other vendors as well.
A lot of the parts and bikes look like they were pulled from the bottom of a pond (literally).