Yeah, this is the way to do it, and I hope it starts to get more common on Steam and other platforms.
Charging full price for alpha versions of your game, then putting it on sale once it's done, is a slap in the face to your biggest fans - and the people who will most likely help you succeed via word of mouth.
Charging full price for alpha versions of your game, then putting it on sale once it's done, is a slap in the face to your biggest fans - and the people who will most likely help you succeed via word of mouth.