Excellent analysis by IMO one of the best and most unsung FH members.
Taking that even further, I'm an advocate of heading north into the western Everglades fringes of central Palm Beach County. Case in point, a few years ago, the area around SR7 (441) and Atlantic was slated for major multi use residential and commercial development prior to the housing bubble bursting. When I went up there to look at the plans for a new community, I was taken that only a few minutes west of the turnpike (importantly) , and away from bustling central Delray Beach, it was like being in the country between all the nurseries, farms and undeveloped land. Plenty of room to roam.
And what's more, the fanbase demographics have largely shifted up that way. Is there anyone who doesn't know folks now living in west Boynton who because of Andrew and natural population shifts over time didn't at one time live proximate to Joe Robbie in Miami or Broward?
My belief is that Miami Dade, Broward, Collier (Keys) and Lee County diehard fans will not be offput by having to drive a 30-60mins further to get to a new stadium (and actually for some,less than they're driving now). So we can retain the faithful fanbase, or what's left of it but at the same time make attending games easier for our Palm Beach, Jupiter up to and through Cocoa Beach (and a special nod to Daytona Fin fan also) fans who will help fill those seats because they'll be enthusiastic about the new opportunity and for several years more taken by the novelty and less jaundiced by our recent history of mediocrity.
Beyond that, a somewhat out of the way un-touristy, inconvenient location will be a logistical deterrent to reach for many of the competing team fans who combine vacation time with their team's playing - also stacking the deck in a partisan crowd's favor.
The fact of the matter is, this is not Miami's team exclusively. This is a South and Central Florida fanbase and Joe Robbie, unlike when it was built, is now only conveniently accessible to only part of that fanbase. Look at Foxboro, it's 40 miles out; It's not a unique idea as evidenced by the NY Jets/Giants in East Rutherford NJ, the Wash Redskins in Landover Md, the Dallas Cowboys in Arlington, the Buff Bills in Orchard Park, the Phoenix Cards in Glendale and of course pointedly the SF 49ers now way down in Santa Clara. (45 miles and a lot further for the affluent fanbase segment north in Marin County).