Both Nova Prime and Nacelle were once exclusive to Amazon, but the reissues will be sold through several online Transformers vendors, such as BigBadToyStore and other official retailers.

If Amazon sells out, it's worth noting that the Lego Store restocked Optimus Prime, too, but you'll have to pay the full $180 MSRP. Lego officially denotes Optimus Prime as "hard to find." ...

Re-issues for the Transformers action figures Nova Prime and Nacelle have launched! If you happened to miss them the first go around, now’s the time to get your pre-order in. The Nova Prime ...