Bah I'd still love to pre-order but I already own all the RPG games you get for free and $50 is still too much for me to pay for a digital version.
As for having all of the bonus games, this is GOG.com. Do you really expect that they won't substitute an equivalently priced game for you? (Something which has apparently already been confirmed.)
And as far as the pricing goes, you have the right to decide what you're willing to pay. Personally, I have only one reason not to go digital (I'd miss reading the manual) versus many reasons to actually do so.
1) Give my money to the creators of the game, not the middle man.
2) I can download my game repeatedly, anytime I wish, and I can save it to DVD's for future installation.
3) I get more bang for my buck than I would by buying a physical copy.
4) Digital means I can access my purchase from any computer with an internet connection. No need to lug around boxes and DVD;s every time I move.
5) I don't have to sweat the patches because CDP will keep things simple for me.
To be honest, I went back and forth about buying the first game, The Witcher 1, and finally decided to skip it. I didn't have much money, and I didn't see the need to spend that money on that particular game.
THEN I read an article about CDP's stance on DRM and their determination to do right by their customers, whereupon I immediately went to Impulse and bought The Witcher. I decided that any game company who devoted themselves to serving me, the customer, deserved my loyalty and discretionary income.
My actions may seem impulsive to some, but my only regret is that I wasn't able to buy The Witcher on GOG.com.