Opinions on swap meets

I'm going to the monster mopar event on Friday at Norwalk. The wife is racing and I set up a little table by my trailer with parts for sale usually with stuff that if it stolen, my heart wouldn't be broken. This year I'm bringing more stuff and though about using a swap space, laying out the stuff and a poster with my cell number on it cuz I'll be bouncing around alot. Some stuff I have a bit of money in and wouldn't be happy if it got swiped. I haven't heard of any thievery happen there but still. What do you think, does my idea suck?