I've seen these blimps in NYC, Boston, and Chicago to name a few places that are notably far from Akron and Miami. I've always wondered - I'd love to know if the blimps are flown from their base locations to other cities, or if they're somehow trucked in and inflated on location.
The fact that they're considering zeppelins leads me to believe that the normal procedure is to fly them to events, which seems crazy given how slow they appear to be...