All inclusive means no gratuities to pay, drinks included at all times (not just with meals), but included drinks are limited to a list - branded spirits - Gordon’s & Beefeater gin, Famous Grouse w husky, Smirnoff vodka etc. there are also included beers and wines - wines are generally 6 - 2 white, 2 red a rose and a sparkling wine. Speciality coffees are included too and snacks. There’s free 24 hour room service. On most cruises there is an Azamazing Celebration which may be an excursion ashore or an onboard special concert etc.
Balcony plus are just a balcony canon with a few extras - bottle of spirits in the cabin, a couple of nights in the speciality restaurant (normally $35 a head), free bag of laundry, free Wifi package.
As far as sales are concerned, there’s nearly always some kind of promotion, they vary in value. We tend to look for a price we’re happy with and just go for it.