Shows, yea or nay?

I've only done two shows in the past (not counting when I bring my jewellery to work at Christmas time), and both times, I've done OK..  OK for me is at least making my booth fee back.  Thankfully, I've had low booth fees, and have managed to come out ahead.

There's a first time expo happening in two weeks here in Halifax, and I've committed to being an exhibitor.  The booth fee was low - big incentive and table rental was cheap too (so I don't have to lug my table around, worth the fee!)!  I'll have to work on my table cover and re-visit my displays.  I use the wire panels from this cube storage for my main display, spray painted an almond colour.  On the left side, I stack them one wide and two high, two panels at a 90 degree angle and from that four more, one high.  This takes up four of the six foot length of the table, leaving a little leeway on each end.  Normally I would hang longer items like necklaces from the taller section, can from the lower end,I hand picture frames painted in the same almond colour, glass removed and replace with screening.  On the screening, I hang the earrings directly. 
Excuse the bad photo (and the table cover is just pinned in the photo)

Now I think I want to try something a little different.  I'd like to figure out a panel system.  I'd keep the wire as the base, and affix some sort of styrofoam or something, and I'd cover it with fabric, something loosely woven, canvas or something. I'll keep the same table cover, I use vintage table cloths and lace over the brown cover.  It's a very neutral scheme so it doesn't compete with my jewellery.

Once I figure it out - I'll add some photo's!