Are we going to have to "buy" the full release version separately?

No.

That seems like such an odd question but it prompts my own question, "in what games have you had to buy the full release separately?" I have seen something like that with games like Slitherine's "Order of Battle" where the basic game is free but you have to purchase DLCs to play a full campaign. The basic game includes the first scenario of each campaign so you can get a preview before making a purchase decision. In that case, however, the basic game is FREE.

yes you do but you need to send me the check, just kidding please don't delete my account moderators