Latest rumors have the Nats asking for $36 million in improvements to the Red Sox abandoned park in Fort Myers, and that Lee County is willing to pay, except that they have no money. The county made a couple offers to the Nats, such as allowing the team to use the ballpark rent free if the Nats accept the stadium as is, but the team said no. Lee County would like to get the state to come up with a large chunk of the cash, with the problem being that Florida would be unlikely to subsidize one county stealing a ball club from another county.
The Nats need to get this right, this move will be a 20 to 30 year decision and despite years of site visits it appears that they are getting desperate. I'd make a deal with Viera to stay there two or three more springs and then keep looking for a better deal.
A big part of the problem is that Nats fans don't travel to spring training in the numbers that the other teams are bringing in, so the cities and counties down there don't see a huge potential for gains.