I frown on the practice of pre-order bonuses and also frown even higher on selling unfinished games to people to ultimately become your beta testers for a game that may end up sucking or even not being released at all. Look at Godus for example, that is a nightmare of epic proportions and I feel sorry for all the people who got sucked into supporting their kickstarter or threw any money into it any other way either.
I've been a video gamer now for 32 years and during all of that time I have never, not even once - bought a video game on pre-order before it was finished and released. Normally I don't even buy them the day they come out or even the week they come out even if I am highly excited about them. In recent years I have been slightly tempted to do this 3 times now as a way to tip my hat to the developers and thank them for making the game I was interested in, but I ended up getting one as a gift from someone, another I ended up deciding to wait for it to show up on GOG, and the third is The Witcher 3 which I originally planned to buy in the weeks leading up to the official release, which would have been right now by the original release date. While still very enthusiastic about that game though, I wont be upgrading my video card for probably 2 years or more unless it lets out a puff of smoke, and I have a Radeon 7850 which is under the minimum system requirements, plus I have a 30" monitor with 2560x1600 resolution which is double the number of pixels over HD, meaning twice the burden on the video card, so I'm not optimistic TW3 will run on my system at all worth playing until I get new video hardware which ain't going to happen for some time - and I don't feel like buying a game up front right now that I might not play for 1-2 years due to hardware limitations (otherwise the rest of my entire system meets the recommended requirements).
So I'm not a fan of pre-ordering at all pretty much, and while a situation could arise that I'd make an exception - like TW3, unforseen events like not meeting minimum system requirements can pour liquid nitrogen onto my plans.
Then there's the fact that lots of games get all hyped up and then often under-deliver in extreme proportions, like what I understand about Godus for example, and then people who bought Early Access or other form of pre-order find out how terrible the game is after it comes out and can't get a refund - while I can just wait and see how terrible people think it is and just not buy it, or wait for it to show up on Bundlestars with 10 other games for $3. Deal! Now, there's zero chance that's true for TW3 of course, I'm totally sold on that game being awesome, but it wont be awesome for me unless one of the pre-order bonuses you get with it is a brand new current generation $300 video card. ;)
Short version: Pre-order? -> Pfffffffttt!