I shipped a 48" round porcelain marathon gas sign to MI a few months ago. I used FedEx ground which was the cheapest cost was around $150.00 + $35.00 in materials. Keep in mind shipping a large sign is not an easy task and takes time and money to prepare it correctly for shipping. In order for it to get there safely!
Joey
Good to know Joey - that price compares almost exactly with the cost I paid to ship a similar sized sign this winter via UPS ground. At least I know I didn't get ripped off ... well, either I didn't or we both did!
Jim