The obvious answer to the OP is, as has been pointed out by everyone, don't buy EA.
Particularly if you are concerned in any way with "value for money", buying ANY early access product is risky, as you cannot be sure what the finished product will be, so it is not possible to make a value judgement. Typically, you assess the game after release, using all available product and review information, and wait to buy the game at the point where its price matches your assessment of the game's value.
I personally consider games using EA to be functionally equivalent to crowdfunding up to the point where a game is feature-complete, and open-beta after that point.
The only potential down-side of Larian charging full price for EA is that the resulting feedback will likely come from a relatively small, committed band of players, which might reduce the breadth of appeal for the released game.
