I know, but I'm so tempted! So looking forward to this game! Hope it delivers everyhting they say.I think they are not going to take out of their store the alpha until the game is released. The one that going to release in 2 days have been said has an emphasis on placing paths and building structures.
If you are on the fence I would recommend you to wait, they are going to be updating the alpha with more things to test until the game releases and they are not going to take it away like the RCTW beta after a weekend.