We are going in July and will buy APs with the 10% off and DVC discount. Can we buy another set that we will use in 2 years or do they need to be used immediately? TIA
To get the extra 10% discount, they must be used immediately. You can buy DVC priced vouchers to use in future years though without the 10% discount. We have a couple years of vouchers in advance to avoid future year price increases.
Keep in mind also that if you renew an annual pass, the rate you pay for that renewal is less than the "retail" price of the pass for that year. It's about a 10% savings on the renewal.