Read this Sun 'n Fun news release dated 3/25/2013.
"SUN ‘n FUN 2013 will take off as scheduled with official, certified FAA Air Traffic Controllers insuring safe and expeditious handling of all arrivals and departures at Lakeland Linder Airport, April 8-15."
Sun 'n Fun agreed to and paid for ATC services well before EAA and, thus, Sun 'n Fun set the precedent. Prior to making assertions about EAA actions setting precedents, at least get your facts straight.
Last year Copperstate was held successfully without ATC services. Copperstate is much smaller than either Sun n Fun or AirVenture and had already dispensed with their airshow years before this latest imbroglio occurred. I was there and everything appeared to be running just fine for an event of its size without using any ATC services other than those normally provided to aircraft arriving and departing from Casa Grande.