It looks like the pressure from the Etsy reader may be getting to Square. I haven't had the opportunity to use Square, but I like their back-end statistics organization a lot.
If you sign up for Square (free, and free reader) using the link below, they will give both of us $1000 worth of waived (free) transaction fees in the next 180 days. Even if you just use it for one show, it sounds like a great idea! (I've also used my Paypal reader to take credit cards at garage sales!)
Here's the link:
squareup.com/i/DC7D1886