pre-pay is not really a problem, but pay extra for the beta is, and as I said before, I understand why companies do it, I just don't understand why people ask for it, or even worse, ask for paying extra to reserve a nickname, or buy overpowered weapons with real money.
also the examples you provide of games that are ultra expensive to make, are all those of the most hyped games and studios, It would be really weird if they don't cover those expenses with the game itself.
about Natural Selection 2, yes you pre-order the game to help them develop, and you get access to the alpha/beta, but they are not being *** hats charging extra money for it, and they don't even have the powerful investors backing them up.
so far, TWI has been one of the fairest devs in terms of pricing and dlc policy and I just hope they stay that way and don't listen to those masochists.