Side note - for anyone planning on picking MB+ up when you arrive at the park:
Right now, the supply around the resort is pretty dire. I can't tell if they're phasing them out or if there's a supply issue, but there are fewer and fewer of them around, especially outside the parks.
Last night, neither DLH nor GCH had any in stock. World of Disney was down to Vacation Club, Jungle Cruise, First Visit, and maybe one other. (There was an evening last week that World of Disney only had Vacation Club bands.)
Even still - recently, the choices have been far fewer. I wasn't in the parks last night - but Tomorrowlanding has had the best selection of bands in recent weeks. Even then, it feels like they keep finding stuff in storage and throwing them out there.
If you're coming to DLR the next few weeks and you want them, you may want to consider ordering them from
DisneyStore in advance.
(I'm quietly irritated that they're selling the 70th band on DS but not at the parks - they've tended to sell out pretty quickly when they've been stocked, and that feels like something that would be helpful while the 70th MB+ tap points are available.)