Eh, I don't usually pay for games like this. Though I understand where you're coming from with wanting to get something back for all the effort. But with the free content being already about 2/3rds of the game (according to the version number at least) I'm not sure how much more would be given in a paid full release that would be new to begin with. It seems more like you're paywalling players from finishing the game's story rather than making a whole game that you'd then sell in full.
Then again, I'm not a seer. I don't know what'll be in the full release, or if it'd be enough content of enough quality to justify spending the money or not. I'll reserve judgement until then. You've done well so far; So that creates a lot of trust in what quality is yet to come. Don't waste it; And good luck.